Let's make a wind generator with our own hands. Homemade wind generator for home and garden: principles of operation, schemes, what and how to make Homemade mini wind generator

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Source of electricity

At least once a year, tariffs for electricity services are increased, often by several times. This hurts the pockets of citizens whose wages are not growing as rapidly. Home craftsmen used to resort to a simple, but rather unsafe and illegal way to save on electricity. They attached a neodymium magnet to the surface of the flow meter, after which it suspended the operation of the meter.

If the specified scheme initially worked smoothly, then problems arose with it in the future. This was explained by several reasons:

Inspectors began to go from house to house more often and conduct unscheduled checks.
They began to stick special stickers on the counters, under the influence of which the magnetic fields began to darken. Accordingly, it was not a problem to calculate such an intruder.
New meters began to be produced that did not have susceptibility to the magnetic field. Instead of standard models, electronic components appeared.

All this prompted people to search for alternative sources of electricity, for example, wind turbines. If a person lives in areas where winds blow regularly, such devices become a lifesaver for him. The device uses the power of the wind to generate energy.

The body is equipped with blades that drive the rotors. The electricity thus obtained is transformed into direct current. In the future, it passes to consumers or accumulates in the battery.

A homemade wind generator can act as the main or additional source of energy. As an auxiliary device, it can heat water in a boiler or feed home lamps, while all other electronics work from the main network. It is also possible to operate such generators as the main source where houses are not connected to electricity. Here the devices feed:

lamps and chandeliers;
heating equipment;
consumer electronics.

The wind farm is capable of feeding low-voltage and classic appliances. The former operate on a voltage of 12-24 volts, and the wind generator is capable of providing power at 220 volts. It is made according to the scheme using inverter converters. Electricity is stored in its battery. There are modifications for 12-36 Volts. They differ in a simpler design. They use standard battery charge controllers. To ensure the heating of the home, it is enough to make wind generators with your own hands at 220 V. 4 kW is the power that their engine will provide.

How to choose a wind generator for a private house

A wind generator (windmill) is a device that converts the kinetic energy of the wind into mechanical energy with subsequent transfer to electricity. The production of wind turbines in Russia in recent years has grown significantly along with the interest of consumers. Today, imported and Russian wind turbines with a capacity of 0.1 to 70 kW are presented on the market. You can buy wind turbines for your home in the companies listed below, whose products are most popular with consumers:

Vetro Svet LLC (St. Petersburg), wind turbine power 0.25–1.5 kW;
SKB Iskra LLC (Moscow), power 0.5 kW;
OOO GRTs-Vertical (Chelyabinsk region, Miass), power 1.5–30 kW;
Sapsan-Energia LLC (Moscow region), power 0.5–5 kW;
CJSC Wind Energy Company (St. Petersburg), power 5 and 30 kW;
LMW "Wind Energy" (Khabarovsk), power 0.1–10 kW.

Distinguish domestic and industrial wind turbines:

Household wind turbines - windmills of small power, sufficient to provide energy to a private house. Their operation requires a constant wind speed of 4 m / s, and the latest developments in equipment make it possible to generate electricity even in light winds.
Industrial wind turbines have a power of several MW. Such installations operate in the far north in areas with constant strong winds.

Necessary conditions for the operation of the generator:

average annual wind speed not less than 4 m/s;
free space for installing a windmill (preferably on a hill);
it is not required to officially coordinate the installation with the local administration - you just need to inform it;
the consent of the neighbors to the installation - the noise generated by the windmill can cause dissatisfaction with people living nearby;
in addition to the installation itself, you will need a mass of additional equipment: batteries, an inventory installation, a control system, a mast.

How to make a windmill with your own hands

Vertical wind turbines are the most efficient and easy to manufacture and operate, which leads to their sufficient prevalence, whether it is a spiral or direct mechanism.

Of great importance is both the purpose of creating a wind turbine and the area on which it will be installed, which should be taken into account when planning.

There are key points that require mandatory attention when creating a wind turbine. The first thing to be determined is, of course, the engine of all progress, the heart of the entire system - a generator that can be both purchased and made by yourself, which, in essence, requires some skill and skills, however, with due desire, a beginner can also handle it. . Depending on your goal, you want a serious machine at 10kW, 5kW (5kW) or less powerful at 12V, or a smaller and simpler bicycle-type wind turbine used as an electrical installation on the balcony of an apartment.

The wind turbine can be equipped with almost any generator:

Whether it is a well-known rural tractor generator;
Detail from an old computer or computer;
Or maybe it's a low-noise car engine;
An element of the engine of a washing machine, only its performance matters.

Next, we decide on the blades - the very spinning objects that resemble the blades of a mill. The blades can also be made from a large number of materials, the most promising and common of which are, for example, plywood, plastic, sometimes tin (barrel edges, for example), PVC material, and so on. When manufacturing, all significant factors should be taken into account - both the influence of centrifugal force, and the size of the blades, the wind flow on the ground, and others. It is most rational to create a winged character, by virtue of increasing efficiency, by influencing the distribution of the wind flow.

The next step is the manufacture of a device for determining the speed and direction of the wind - a weather vane. It is something like a metal flag that changes its position in accordance with the wind currents. Almost any relatively strong, but light layer of metal can be used as a weather vane.

Mast - a wide range of improvised means can also be used in its role, for example, a strong water pipe. It is quite possible to make a home-made wind apparatus (home-made) yourself, as already described, from the maximum available means, and the strength of the windmill depends on the materials used and the reasonableness of use in specific conditions. The simplest representative of such devices is quite capable of creating electricity for lighting a room, charging devices, and, if desired, even to meet the basic needs of a relatively small country house.

powerful models

Independent production of powerful models of wind turbines requires a lot of effort and theoretical preparation. First of all, it is necessary to create a powerful generator that requires calculations, proper assembly, and the use of high-quality materials. In addition, it is necessary to make a rotor that operates in light winds, but is capable of generating sufficient force for the generator. Appropriate electrical current processing devices, a frame, a mast and other structural and electronic elements will also be required.

Wind generator with a capacity of more than 1 kilowatt

Windmills of similar power are commercially available. Purchasing an installation allows you to get a finished device with previously known parameters, made of appropriate materials. Prices for such equipment start at 30,000 rubles, which is not available to every user.

In addition, associated electronics, batteries and other equipment will be required, which will approximately double the cost. The high cost of installations is the main reason for the spread of do-it-yourself windmill models.

Do-it-yourself vertical windmill (5 kW)

There are several options for manufacturing a device of such power:

rotary design
chain of sailing impellers arranged in series
use of an axial generator on neodymium magnets

The choice of the most convenient option depends on the degree of training and the technical base of the user. Vertical structures are recommended, which are independent of wind direction and do not need to be mounted on high masts.

Carousel multi-bladed structures based on the Savonius rotor meet the requirements most successfully. There are also industrial installations of this class, the purchase of which will speed up the solution of the issue and will allow you to get a professionally manufactured complex with guaranteed parameters.

Vertical lines

Wind turbines with a vertical axis of rotation are the most suitable for self-manufacturing device group. They have a simple, clear design. They do not need a large number of rotation nodes, they are undemanding to the direction of the wind. The capabilities of this group have generated a large number of design options, some of which should be considered in more detail.

Sun

The Savonius wind generator is one of the oldest developments that saw the light in the 20s of the last century. The device consists of two blades of a sufficiently large area, curved in the longitudinal direction. In cross section, they resemble the Latin letter S. At the same time, they are slightly shifted towards each other, somewhat overlapping the working sides.

When exposed to a wind flow, one of the blades receives a force on the working part, and the second - on reverse side. The shape of the blade contributes to the dissection of the flow, part of which goes to the side, and the other part slips onto work surface second blade, increasing torque.

Expert opinion
Expert Energo.House Fomin O. A.
Mining engineer, builder.

Based on the Savonius design, many models of windmills with an increased number of blades have been developed, more efficient and sensitivity to light winds.

Daria

The Darier design was proposed almost simultaneously with the Savonius rotor. Its basis is blades shaped like an airplane wing and arranged vertically tangential to the circle of rotation. An odd number of blades is required, otherwise an excessively high balancing force will occur. The lifting force of the blades contributes to the emergence of a high rotation speed, exceeding this figure by 3-4 times compared to the Savonius rotor.

There is still no mathematical description of the operation of the device, but developments based on the design exist and are constantly updated. There are a large number of models of private wind turbines with enough power to power a small home.

orthogonal

Orthogonal designs are the most efficient of all the basic vertical wind turbines. They have high speeds, sensitivity, performance. The design consists of several blades (usually three or more) located at some distance from the axis parallel to it. The Darrieus rotor discussed above is one of the representatives of orthogonal devices. The disadvantages include high loads on the rotation unit, which contribute to the rapid failure of moving parts.

Helicoid

Helicoid structures are based on the basic model of orthogonal type, but with significant changes in the geometry of the blades. They are bent around the circumference of rotation, having obtained a shape close to spiral. As a result, significant stabilization of rotation is achieved, wear of moving elements is reduced, the design as a whole acquires durability, strength and reliability.

Smoother rotation provides uniform generation of electricity, which allows the use of devices for direct power supply of some consumers (lighting devices, pumps, etc.). For self-manufacturing, the design is a rather difficult task due to the complex geometric shape of the blades.

Barrel-barrel

This is the “popular” name for a multi-blade carousel (vertical) wind generator. The device has a good balance, effectively captures the wind flow, low noise. For those who want to try their hand at making a windmill with their own hands, this design option is recommended as one of the basic types of design. The blades are made of galvanized sheet steel, cut along the barrels or other improvised material.

Frame - welded from metal profile- corner, pipes, etc. The peculiarity of the device is its invulnerability to strong gusts of wind - around the impeller, when the flow increases, a vortex cocoon is formed, which prevents the wind from penetrating inside the impeller. The flow simply wraps around the device like a pipe.

Lenz wind generator

A design feature of Lenz is the use of strong neodymium magnets instead of bearings. They keep the rotation assembly in a "suspended" state, which ensures ease of rotation. The absence of friction contributes to the high durability of the equipment. The indicators are very impressive - the start of rotation occurs at a wind speed of 0.17 m / s, and the windmill reaches its nominal performance already at 3.4 m / s.

final assembly

The generator frame is welded from profile pipe. The tail is made of galvanized sheet. The rotary axis is a tube with two bearings. The generator is attached to the mast in such a way that the distance from the blade to the mast is at least 25 cm. For safety reasons, a calm day should be chosen for the final assembly and installation of the mast. The blades under the influence of a strong wind can bend and break on the mast.

To use batteries to power equipment that runs on 220 V, you will need to install a voltage conversion inverter. The battery capacity is selected individually for the wind generator. This indicator depends on the wind speed in the area, the power of the connected equipment and the frequency of its use.

Wind generator device

To prevent the battery from failing from overcharging, you will need a voltage controller. You can make it yourself if you have sufficient knowledge in electronics, or buy ready-made. There are many controllers for alternative energy mechanisms on the market.

Advice. To prevent the blade from breaking in strong winds, a simple device is installed - a protective weather vane.

How to make a wind generator from a car generator

The easiest option is to use a car generator as a windmill generator. Autogenerators are inexpensive, well repaired, there is a large selection on the market. At a cost, they are approximately $20 per 1 kW. They give out a stable voltage from a certain speed and are docked with 12 volt batteries.

Flaws:

require high revolutions - from 1.5-2.0 thousand and above per minute;
inferior in reliability to factory generators for windmills;
have a relatively small resource (up to 4000 hours of operation), which is offset by low cost.

To assemble a wind generator with your own hands from a 1.5 kW car generator, you will need:

car generator for 12 v;
a rechargeable battery of the appropriate voltage;
converter from 12 to 220v, power 1.3 kW;
a small barrel (bucket) made of aluminum or steel;
charging relay and car warning lamp;
moisture-proof switch, 12v;
voltage control device (old voltmeter);
copper wire from 2 mm in cross section;
fasteners (bolts, washers, nuts, clamps).

From a hand tool you will need: metal scissors, grinder, measuring tape, pencil, screwdrivers, spanners in the set, pliers, electric drill with drills.

A few key points in the manufacture of a wind generator:

Maximum efficiency can be achieved by converting the car generator under permanent magnets. To do this, the excitation winding must be replaced with several ferrite magnets.
By turning a non-magnetic rotor out of titanium or other non-magnetic material, magnetization of the rotor can be avoided.
To increase current generation at low speeds, you need to rewind the stator, increasing the number of turns by 5 times and reducing the wire diameter.
Installing neodymium magnets on the rotor will increase the power of the generator at low speeds. An even number of magnets are attached to a steel band, which must be attached to the base of the inside of the generator. When installing magnets to increase power, you need to alternate the polarity.
For the manufacture of blades, an duralumin pipe is suitable, the fasteners are made of steel. The blades must be balanced, as well as to lighten the design as much as possible by removing the excess with a grinder and emery.

The network has enough materials with a detailed description of the work, so there is no need to repeat

How to make a wind generator with your own hands

To mount this device at home you will need:

Thorough knowledge of an electrician;
Power supply. It can be an alternator or an asynchronous motor.
A safe place to install the device. Since the weight of individual household units can reach from 200 to 800 kg.
neodymium magnets. This class of magnets has greater performance;

Various types of forms. In our case, rectangular or round are more suitable.

Wires of suitable section;
Materials for mounting the frame and the windmill itself.

As already described above, there are many design options. The noise background created by the unit depends on the dimensions and method of connecting the nodes. If you don't want trouble with the neighbors, discuss this issue in advance, as individual units are quite noisy, for example, like the self-assembled wind generator in the next video.

After carrying out all the preliminary activities, you will need to choose a power source that suits your needs. With limited financial resources, two budget options are possible:

Automobile generator;
Asynchronous motor from a washing machine.

Each option has its positive and negative sides.

Related article:

Voltage stabilizer 220V for home: which one to choose. In the article, we will consider in detail what this equipment is for, types, connection diagrams, average prices and specifications how to do it yourself.

Do-it-yourself wind generator option from a washing machine

To increase power, the engine is being upgraded by replacing ferrite magnets with neodymium ones. It should be noted that the installation of magnets is a rather laborious process that requires certain skills.

An example of the location of neodymium magnets in the engine from a washing machine

In order to save time and nerves, a simpler option is to buy a ready-made rotor of a suitable size. It is rational to use such an engine in a device with small dimensions.

Making a wind generator with your own hands from a car generator

This option also needs to be improved, as the standard sample operates at 5000 - 6000 rpm. The upgrade includes:

The device is equipped with neodymium magnets. They are installed in a strict order, that is, the poles alternate. For convenience, a template is cut out of thick cardboard;

Magnets layout template

The stator winding is rewound. The number of turns increases, therefore, the cross section of the wire decreases.
There are no magnets as standard, so the central shaft must be made of a non-magnetic material, such as titanium.

But even if all the requirements for optimal voltage are met, the rotor must rotate from 500 times per minute.

General negative characteristics:

Both options are short-lived, requiring annual repair or replacement;
The generated power is not enough for a full power supply;
Needs significant improvement.

If you already have necessary knowledge and you know approximately how to make a 220V wind generator with your own hands, it will be more rational to mount a unit of greater power.

When assembling a horizontal or vertical wind generator with your own hands, observe the rigidity of the entire structure, from the blades to the controlling stretch marks. Unreliable structural components can lead to an accident.

One of the many accidents

Video: do-it-yourself wind generator 24V 2500W

How to calculate and choose a wind generator

Wind is not natural gas pumped through pipes, nor is it electric power flowing uninterruptedly through wires to our homes. He is capricious and fickle. Today a hurricane tears off roofs and breaks trees, and tomorrow it is replaced by complete calm.

Therefore, before buying or self-manufacturing a windmill, you need to assess the potential of air energy in your area. To do this, determine the average annual wind force. This value can be found on the Internet upon request.

Having received just such a table, we find the area of \u200b\u200bour residence and look at the intensity of its color, comparing it with the rating scale. If the average annual wind speed is less than 4.0 meters per second, then there is no point in installing a wind turbine. It will not provide the required amount of energy.

If the wind strength is sufficient to install a wind farm, then you can proceed to the next step: selecting the generator power.

If we are talking about autonomous power supply at home, then the average statistical consumption of electricity by 1 family is taken into account. It is in the range from 100 to 300 kWh per month. In regions with low annual wind potential (5-8 m/sec), such an amount of electricity can be generated by a 2-3 kW windmill.

At the same time, it should be taken into account that Imoi average wind speed is higher, so energy production during this period will be greater than in summer.

Making a generator for a windmill

In order to assemble a wind farm, we need a generator, and with self-excitation. In other words, its design must contain magnets that induce electricity in the windings. This is how some electric motors are arranged, for example, in screwdrivers. But it will not work to make a decent wind generator from a screwdriver - the power will be simply ridiculous, the maximum will be enough to operate a small LED lamp.

It will also not work to make a wind farm from an autogenerator - it uses an excitation winding powered by a battery, so it does not suit us. From a household fan, we can only make a scarecrow for birds attacking the garden. Therefore, you need to look for a normal self-excited generator of suitable power. Better yet, splurge and buy a purchased model.

It is really more profitable to buy a generator than to make it - the efficiency of a factory model will be higher than that of a homemade one.

Let's see how to make a generator for our windmill with our own hands.

Its maximum power is 3-3.5 kW. For this we need:

Stator - it is made of two pieces sheet metal, cut in the form of circles with a diameter of 500 mm. 12 neodymium magnets with a diameter of 50 mm are glued to each circle along the edge (slightly departing from the edge). Their poles must alternate. Similarly, we prepare the second circle, but only the poles here should be located with a shift;
Rotor - it is a design of 9 coils wound with copper wire with a diameter of 3 mm in varnish insulation. We make 70 turns in each coil, although some sources recommend making 90 turns. To place the coils, it is necessary to make a base from a non-magnetic material;
Axis - it must be done exactly in the center of the rotor. Moreover, there should be no beats, the structure must be carefully centered, otherwise it will be quickly broken by the wind.

We place the stators and the rotor - the rotor itself rotates between the stators. A distance of 2 mm is maintained between these elements. We connect all the windings according to the diagram below, so that we get a single-phase AC source.

DIY wind generator from a stepper motor

Device from stepper motor even at a low rotation speed it produces about 3 watts. The voltage can rise above 12 V, and this allows you to charge a small battery. As a generator, you can insert a stepper motor from the printer. In generator mode, the stepper motor produces alternating current, and it can be easily converted to constant using several diode bridges and capacitors. The scheme, you can easily assemble with your own hands. The stabilizer is installed behind the bridges, as a result we get a constant output voltage. To control visual tension, you can install an LED. In order to reduce the loss of 220V, Schottky diodes are used to rectify it.

The blades will be made of PVC pipe. The workpiece is drawn on the pipe, and then cut out with a cutting disc. The propeller span should be about 50 cm, and the width of the blades should be 10 cm. You need to machine a sleeve with a flange to fit the size of the SD shaft. It is mounted on the motor shaft and fastened with screws, plastic “screws” will be attached directly to the flanges. It is also necessary to carry out balancing - pieces of plastic are cut off from the ends of the blades, the angle of inclination is changed by heating and bending. The generator itself is inserted into a piece of pipe, to which it was also attached with bolts. As for the electrical board, it is better to place it below, and bring power from the generator to it. Up to 6 wires come out of the stepper motor, which correspond to two coils. They require slip rings to transfer power from the moving part. Having connected all the parts together, we proceed to testing the design, which will start revolutions at 1 m / s.

Rotary wind turbine

Let's figure out how to make a simple windmill with a vertical axis of rotation of the rotary type with your own hands.

Such a model may well meet the needs of electricity garden house, a variety of outbuildings, as well as highlight the local area and garden paths.

The blades of this rotary type installation with a vertical axis of rotation are clearly made from elements cut from a metal barrel.

Our goal is to manufacture a windmill with a maximum power of 1.5 kW. To do this, we need the following elements and materials:

car generator for 12 V;
helium or acid battery 12 V;
semi-hermetic switch of the “button” variety for 12 V;
converter 700 W - 1500 W and 12V - 220V;
bucket, large saucepan or other capacious container made of of stainless steel or aluminum;
automobile relay of a control lamp of a charge or charging of the accumulator;
automobile voltmeter (any one is possible);
bolts with nuts and washers;
wires with a cross section of 4 square mm and 2.5 square mm;
two clamps for fixing the generator on the mast.

In the process of doing the work, we will need a grinder or metal shears, a construction pencil or marker, a tape measure, wire cutters, a drill, a drill, keys and a screwdriver.

Starting stage of the plant manufacturing

We start making a homemade windmill by taking a large metal container cylindrical shape. Usually, an old boiling pot, bucket or pan is used for this purpose. It will be the basis for our future WPP.

Using a tape measure and a construction pencil (marker), we will mark up: we will divide our container into four identical parts.

When making cuts in accordance with the instructions contained in the text, in no case cut through the metal to the end

The metal will have to be cut. To do this, you can use the grinder. It is not used to cut a container made of galvanized steel or painted sheet metal, because this type of metal will overheat.

For such cases, it is better to use scissors. We cut out the blades, but do not cut them through to the very end.

Now, along with the continuation of work on the tank, we will redo the generator pulley.

In the bottom of the former pan and in the pulley, you need to mark and drill holes for the bolts. The work at this stage should be taken as carefully as possible: all holes should be located symmetrically so that no imbalance occurs during the rotation of the installation.

This is how the blades of another design with a vertical axis of rotation look like. Each blade is made separately, and then mounted in a common device

We bend the blades so that they do not stick out too much. When we do this part of the work, we must take into account in which direction the generator will rotate.

Usually the direction of its rotation is oriented clockwise. The angle of the blades bend affects the area of influence of air currents and the speed of rotation of the propeller.

Now you need to fix the bucket with the blades prepared for work on the pulley. We install the generator on the mast, while fixing it with clamps. It remains to connect the wires and assemble the chain.

Prepare to write down the wiring diagram, wire colors, and pin markings. You will definitely need it later. We fix the wires on the mast of the device.

This figure contains detailed assembly instructions general design and a general view of the device already assembled and ready for use

To connect the battery, you need to use wires with a cross section of 4 mm². It is enough to take a segment with a length of 1 meter. That's enough.

And in order to connect a load to the network, which includes, for example, lighting and electrical appliances, wires with a cross section of 2.5 mm² are sufficient. We install the inverter (converter). This will also require a 4 mm² wire.

Advantages and disadvantages of a rotary windmill model

If you did everything carefully and consistently, then this wind generator will work successfully. At the same time, there will be no problems during its operation.

If you use a 1000 W converter and a 75A battery, this installation will provide electricity to both video surveillance devices, and burglar alarm and even street lighting.

The advantages of this model are:

economical;
elements can be easily replaced with new ones or repaired;
special conditions for functioning are not needed;
reliable in operation;
provides complete acoustic comfort.

There are also disadvantages, but they are not so many: the performance of this device is not very high, and it has a significant dependence on sudden gusts of wind. Air currents can simply disrupt an impromptu propeller.

Windmill with your own hands. Fun or real savings

Let's say right away that it is not easy to make a wind generator with your own hands full-fledged and efficient. Proper calculation of the wind wheel, transmission mechanism, selection of a suitable generator in terms of power and speed is a separate issue. We will give only brief recommendations on the main stages of this process.

Generator

Automotive alternators and electric motors from direct drive washing machines are not suitable for this purpose. They are able to generate energy from the wind wheel, but it will be negligible. Autogenerators for effective work very high speeds are needed, which the windmill cannot develop.

Washer motors have a different problem. There are ferrite magnets, and for a wind generator, more productive ones are needed - neodymium. The process of their self-assembly and winding of current-carrying windings requires patience and high accuracy.

The power of a do-it-yourself device, as a rule, does not exceed 100-200 watts.

Recently, motor-wheels for bicycles and scooters have been popular among home-made people. From the standpoint of wind energy, these are powerful neodymium generators, optimally suited for working with vertical wind wheels and charging batteries. Up to 1 kW of wind energy can be removed from such a generator.

Motor-wheel - a ready-made generator for a homemade wind farm

Wind turbine power source

Utility tariffs are raised at least once a year. And if you look closely, then in some years the same electricity rises in price twice - the numbers in payment documents grow like mushrooms after rain. Naturally, all this hits the pocket of the consumer, whose income does not show such a steady growth. And real incomes, as statistics show, show a downward trend.

Until quite recently, it was possible to fight against the growth of electricity tariffs in one simple, but illegal way - with the help of a neodymium magnet. This product was applied to the body of the flowmeter, as a result of which it stopped. But we strongly do not recommend using this technique - it is unsafe, illegal, and the fine upon capture will be such that it will not seem small.

The scheme was just great, but subsequently it stopped working for the following reasons:

The frequent control rounds began to massively identify unscrupulous owners.

Control rounds have become more frequent - representatives of regulatory authorities go from house to house;
Special stickers began to be pasted on the counters - under the influence of a magnetic field they darken, exposing the intruder;
The counters have become immune to the magnetic field - electronic accounting units are installed here.

Therefore, people began to pay attention to alternative sources of electricity, such as wind turbines. .
Another way to expose the violator who steals electricity is to conduct an examination of the level of magnetization of the meter, which easily reveals the facts of theft.

Another way to expose the violator who steals electricity is to conduct an examination of the level of magnetization of the meter, which easily reveals the facts of theft.

Windmills for the home are becoming commonplace in areas where winds often blow. The wind power generator uses the energy of wind air currents to generate electricity. To do this, they are equipped with blades that drive the rotors of the generators. The resulting electricity is converted into direct current, after which it is transmitted to consumers or stored in batteries.

Wind generators for a private house, both homemade and factory assembled, can be the main or auxiliary sources of electricity. Here is a typical example of the operation of an auxiliary source - it heats the water in the boiler or feeds low-voltage home lights, while the rest of the home appliances are powered by the main power supply. It is also possible to work as the main source of electricity in houses that are not connected to electrical networks. Here they feed:

Chandeliers and lamps;
Large household appliances;
Heating appliances and more.

Accordingly, in order to heat your home, you need to make or purchase a 10 kW wind farm - this should be enough for all needs.

The wind farm can power both traditional electrical appliances and low-voltage ones - they operate on 12 or 24 volts. A 220 V wind generator is carried out according to a scheme using inverter converters with the accumulation of electricity in batteries. Wind generators for 12, 24 or 36 V are simpler - simpler battery charge controllers with stabilizers are used here.

Pay special attention to choosing the right number of blades. The most popular are wind turbines with 2 and 3 blades.

However, such installations have a number of disadvantages.

When operating a generator with 2 or 3 blades, powerful centrifugal and gyroscopic forces take place. Under the influence of the mentioned forces, the load on the main elements of the wind generator increases significantly. At the same time, at some moments the forces act in opposition to each other.

In order to level the incoming loads and keep the design of the wind generator intact, you need to perform competent aerodynamic calculation of the blades and manufacture them in strict accordance with the calculated data. Even minimal errors reduce the efficiency of the installation several times and increase the likelihood of an early breakdown of the wind generator.

When using the data of aerodynamic handbooks, it is necessary to make an appropriate adjustment

A lot of noise is created during the operation of high-speed wind turbines, especially when it comes to home-made installations. The larger the blades, the louder the noise will be. This moment imposes a number of restrictions. For example, it will no longer be possible to install such a noisy structure on the roof of a house, unless, of course, the owner likes the feeling of life in an airfield.

Keep in mind that with an increase in the number of blades, the level of vibration generated during the operation of the wind generator will increase. Two-blade setups are more difficult to balance, especially for the inexperienced user. Consequently, there will be a lot of noise and vibration from windmills with two blades.

Give a choice in favor of a wind generator with 5-6 blades. Practice shows that such models are the most optimal for self-production and use at home.

The screw is recommended to be made with a diameter of about 2 m. Almost anyone can handle the work of assembling and balancing it. Having gained experience, you can try to assemble and install a wheel with 12 blades. The assembly of such a unit will require more effort. Material and time costs will also increase. However, 12 blades will allow even with a light wind of 6-8 m / s to receive power at the level of 450-500 watts.

Keep in mind that with 12 blades, the wheel will be quite slow, and this can lead to various problems. For example, you will have to assemble a special gearbox, which is more complex and expensive to manufacture.

Thus, the best option for a beginner home master is a wind generator with a wheel with a diameter of 200 cm, equipped with 6 blades of medium length.

Rotary installation

Such a do-it-yourself wind generator is capable of generating an amount of electricity sufficient to light a small garden house, outbuildings, as well as several lanterns in the yard. Such windmills are made from a car generator or starter, and therefore, in order not to purchase expensive equipment for its manufacture, we will consider a device that will generate up to one and a half kilowatts. To do this, you will need the following materials:

12 volt car generator;
helium or acid battery (you also need a 12-volt one);
sealed switch;
voltage converter from 12 to 220 V and 700–1500 watts;
large capacity stainless steel or aluminum blades. A plastic pipe with a diameter of 20–25 cm may also be suitable;
battery charging relay with voltmeter;
fasteners, i.e. bolts and nuts;
wires having a cross section of 4 and 2.5 square meters. mm;
two clamps for mounting on the mast of the device;
a metal pipe of sufficient length to be used as a mast;
and, of course, various instrument: metal scissors, grinders, wrenches, screwdrivers and a drill with a set of drills.

Manufacturing algorithm

An example of cutting out wind turbine blades

The first step is to make the fan blades of the future wind generator for a private house with your own hands. An old large aluminum pan works well for this, but options are possible here. It is necessary to mark with a pencil, and then cut the container along the marked lines with a grinder or metal scissors, leaving small sections uncut from above and below, i.e. as shown in the figure. The blades should turn out the same, and their number depends only on the preferences of the master.

The cut blades are bent in the right direction. It must be remembered that the direction of rotation depends on the direction in which the blades are turned, and the speed at which the screw will rotate the generator depends on the angle of their rotation and size. It is more convenient to cut them with a grinder, but if the metal is thin, metal scissors are quite suitable.

The situation is a little more complicated with a plastic pipe. It must be divided lengthwise into four parts, after which, for each of the semicircular segments, make “plugs from above and below, and then arrange them into one screw to get a semblance of the first option.

Then, using a drill, mounting holes are made in the generator shaft and the finished propeller, after which the blades are fixed to the rotor shaft with bolts. You can do similar work with the help of a gearbox, increasing the speed of rotation of the generator - this is already at the discretion of the master himself.

After the work done, it remains only to fix the wind generator with clamps on the mast and stretch the wires along it.

Windmill device diagram

Assembly of equipment on the ground

Because the optimal length of the wind farm mast is 5–13 meters, its base must be poured with concrete for good stability. It also makes sense to think about options for how to lower the wind generator for the house down or get to it in the event of a breakdown.

The wires coming from the wind generator itself are connected through the charging relay to the battery. Next in the circuit is a converter, from which a voltage of 220 volts will already be supplied to the switchboard.

All equipment must be protected from atmospheric precipitation and direct access of children. The switch is installed on the mast, at an accessible height, and breaks the positive wire from the wind generator to the charging relay. Thus, in case of uselessness or weak wind, the load can be removed by allowing the blades to rotate “idle”.

It is very important to disconnect the load when the wind is too strong, which can damage both the generator itself and the battery charging relay. . But there is a more powerful option for making a wind generator with your own hands at home.

Of course, it is a little more complicated, but, nevertheless, following the rules and procedures, it is quite possible to make such a device.

But there is a more powerful option for making a wind generator with your own hands at home. Of course, it is a little more complicated, but, nevertheless, following the rules and procedures, it is quite possible to make such a device.

Wiring diagram generator

The principle of operation of the wind turbine

A wind generator or wind power plant (WPP) is a device that is used to convert the kinetic energy of a wind flow into mechanical energy. The resulting mechanical energy rotates the rotor and is converted into the electrical form we need.

The structure of the WUE includes:

blades that form a propeller,
rotating turbine rotor
the axis of the generator and the generator itself,
an inverter that converts alternating current to direct current used to charge batteries,
battery.

The essence of wind turbines is simple. During the rotation of the rotor, a three-phase alternating current is generated, which then passes through the controller and charges the battery direct current. Next, the inverter converts the current so that it can be consumed, powering lighting, a radio, a TV, a microwave oven, and so on.

The detailed arrangement of a wind turbine with a horizontal axis of rotation allows you to imagine well what elements contribute to the conversion of kinetic energy into mechanical and then into electrical energy.

This scheme of operation of the wind turbine allows you to understand what happens to the electricity produced by the operation of the wind generator: part of it is accumulated, and the other is consumed

In general, the principle of operation of a wind generator of any type and design is as follows: in the process of rotation, there are three types of force acting on the blades: braking, impulse and lifting. The last two forces overcome the braking force and set the flywheel in motion. On the stationary part of the generator, the rotor generates a magnetic field to electricity went on the wire.

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For the manufacture of a wind power generator, an engine from unnecessary household appliances is suitable. The more volts per revolution, the more efficient the system will work.
A sleeve is attached to the motor rotor, on which the blades of the device are fixed. It is better to close the frontal knot protective cover
The front part with the motor and blades must be balanced with the tail part. The shoulder of the tail from a pipe or rail should be longer, a shank of any shape is fixed on its edge

Engine for a simple windmill

The specifics of the connection of the motor with the blades

Tail and front balance

Wind generator installation rules

Scheme of a homemade wind generator main components

Making a homemade wind turbine at home is relatively easy. Below you can see a simple drawing explaining the location of the individual nodes. According to this drawing, we need to make or prepare the following nodes:

Scheme of a homemade windmill.

Blades - they can be made from a variety of materials;
Generator for a wind generator - you can buy ready-made or make it yourself;
Tail section - directs the blades in the direction of the wind, allowing you to achieve maximum efficiency;
Multiplier - increases the rotation speed of the shaft (rotor) of the generator;
Mounting mast - all of the above nodes will be held on it;
Tension cables - hold the entire structure and prevent it from falling from gusts of wind;
The charge controller, batteries and inverter provide the conversion, stabilization and accumulation of the received electricity.

We will try to make a simple rotary wind generator with you.

General principle of operation

The main working body of the wind generator is the blades, which rotate the wind. Depending on the location of the axis of rotation, wind turbines are divided into horizontal and vertical:

Horizontal wind turbines the most widespread. Their blades have a design similar to an aircraft propeller: in the first approximation, these are plates inclined relative to the plane of rotation, which convert part of the load from wind pressure into rotation. An important feature of a horizontal wind generator is the need to ensure the rotation of the blade assembly in accordance with the direction of the wind, since maximum efficiency is ensured when the direction of the wind is perpendicular to the plane of rotation.
blades vertical wind generator have a convex-concave shape. Since the streamlining of the convex side is greater than the concave side, such a wind generator always rotates in the same direction, regardless of the direction of the wind, which makes it unnecessary rotary mechanism unlike horizontal windmills. At the same time, due to the fact that at any time only a part of the blades performs useful work, and the rest only oppose rotation, The efficiency of a vertical windmill is much lower than that of a horizontal one.: if for a three-bladed horizontal wind generator this figure reaches 45%, then for a vertical one it will not exceed 25%.

Since the average wind speed in Russia is low, even a large windmill most time will rotate quite slowly. To ensure sufficient power supply, it must be connected to the generator through a step-up gearbox, belt or gear. In a horizontal windmill, the blade-reducer-generator assembly is mounted on a swivel head that enables them to follow the direction of the wind.

It is important to note that the swivel head must have a limiter that prevents it from making a full turn, since otherwise the wiring from the generator will be cut off (the option using contact washers that allow the head to rotate freely is more complicated). To ensure rotation, the wind generator is supplemented by a working weather vane directed along the axis of rotation

The most common blade material is large diameter PVC pipe cut lengthwise. Along the edge, metal plates are riveted to them, welded to the hub of the blade assembly. Drawings of this kind of blades are the most widely distributed on the Internet.

The video tells about a wind generator made by hand

Do-it-yourself wind generators for 220 v

In order to assemble the windcatcher, we need: a 12 volt generator, rechargeable batteries, converter from 12 v to 220 v, voltmeter, copper wires, fasteners (clamps, bolts, nuts).

In order for the wind generator to turn out to be practical and of high quality, it is better to read the detailed instructions before manufacturing it.

The manufacture of any windmill involves the following steps:

Blade manufacturing. The blades of a vertical wind generator can be made from a barrel. You can cut the parts with a grinder. A screw for a small windmill can be made from a PVC pipe with a cross section of 160 mm.
Mast making. The mast must be at least 6 meters high. At the same time, in order for the torsional force not to break the mast, it must be fixed to 4 stretch marks. At the same time, each stretch must be wound on a log, which should be buried deep in the ground.
Installation of neodymium magnets. The magnets are glued to the rotor disc. It is better to choose rectangular magnets, in which the magnetic fields are concentrated over the entire surface.
Winding generator coils. Winding is carried out with a copper thread with a diameter of at least two mm. At the same time, skeins should be no more than 1200.
Fixing the blades to the pipe with nuts.

In the presence of powerful batteries and an inverter, the resulting device will be able to generate such an amount of electricity that will be enough to use household appliances (for example, a refrigerator and a TV). Such a generator is perfect for maintaining the operation of lighting, heating and ventilation systems of a small country house, greenhouses.

If you get an inverter with indicators of 100 volts and a battery of 75 amperes, then the windmill will be much more powerful and productive: there will be enough electricity for both video surveillance and an alarm.

To make a wind generator, you will need design details, Consumables and tools. The first step is to find suitable windmill components, many of which can be found among old stocks:

Generator from a car with a power of about 12 V;
Rechargeable battery for 12 V;
Push-button semi-hermetic switch;
Inventory;
Car relay used to charge the battery.

You will also need consumables:

Fasteners (bolts, nuts, insulating tape);
Steel or aluminum container;
Wiring with a cross section of 4 square meters. mm (two meters) and 2.5 sq. mm (one meter) ;
Mast, tripod and other elements to enhance stability;
Strong rope.

It is advisable to find, study and print do-it-yourself wind turbine drawings. You will also need tools, including a grinder, a meter, pliers, a drill, a sharp knife, an electric drill, screwdrivers (Phillips, minus, indicator) and wrenches.

Having prepared everything you need, you can start assembling, focusing on step-by-step instructions that tell you how to make a wind generator with your own hands:

Cut out blades of the same size from a metal container, leaving an untouched strip of metal a few centimeters at the base.
Symmetrically make holes with a drill for the existing bolts in the bottom of the base of the tank and the generator pulley.
Bend the blades.
Fix on the blade pulley.
Install and secure the generator on the mast with clamps or a rope, stepping back from the top about ten centimeters.
Establish wiring (to connect the battery, a meter-long core with a cross section of 4 sq. Mm is enough, for loading with lighting and electrical appliances - 2.5 sq. Mm).

Do-it-yourself wind generators for 220 volts are an opportunity to provide a summer house or a country house with free electricity in the shortest possible time. Even a beginner can set up such an installation, and most of the details for the structure have long been idle in the garage.

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The main types of wind turbines and their features

There are two types of wind generators:

With a horizontal arrangement of a rotor.
With vertical rotor.

The first type is the most common. It is characterized by high efficiency (40-50%), but has an increased level of noise and vibration. In addition, its installation requires a large free space (100 meters) or a high mast (from 6 meters).

Generators with a vertical rotor are less energy efficient (the efficiency is almost 3 times lower than that of horizontal ones).

Their advantages include simple installation and reliable design. Low noise level allows you to install vertical generators on the roofs of houses and even at ground level. These installations are not afraid of icing and hurricanes. They are launched from a weak wind (from 1.0-2.0 m / s) while a horizontal windmill needs an air flow of medium strength (3.5 m / s and above). According to the shape of the impeller (rotor), vertical wind turbines are very diverse.

Rotary wheels of vertical windmills

Due to the low rotor speed (up to 200 rpm), the mechanical resource of such installations significantly exceeds the performance of horizontal wind generators.

Manufacturing instructions

A windmill can even be made from plastic bottles. It will spin under the influence of the wind, while making noise. There are many possible schemes for arranging such products. The axis of rotation can be placed in them vertically or horizontally. These devices are mainly used for pest control in the garden.

A homemade wind generator is similar to a bottle windmill in design, but it is larger and has a more solid design.

If you attach a motor to a windmill to fight moles in the garden, it will be able to provide electricity and feed, for example, LED lamps.

Generator Assembly

To assemble a wind farm, you will definitely need a generator. It is necessary to put magnets in its body, which will provide electricity in the windings. This type of device has certain types of electric motors, for example, which are installed in screwdrivers. But it will not be possible to make a generator from a screwdriver. It will not provide the required power. It is only enough to feed a small LED lamp.

It is also unlikely that a wind farm can be made from a car generator. This is explained by the fact that in this case an excitation winding is used, which is powered by a battery, which is why it is not suitable for these purposes. You should select a self-excited generator of optimal power or buy a ready-made model. Experts recommend buying it in ready-made, because this device will provide high efficiency, but no one bothers to do it yourself. Its maximum power will be at the level of 3.5 kW.

What you need to take:

Stator. It uses 2 metal sheet cut into circles with a diameter of 500 mm. Each piece is glued with 12 neodymium magnets with a diameter of 50 mm. They are fixed, stepping back a little from the edges of the products, always with alternating poles. The same is done with the second circle, but the poles are set with a shift.
Rotor. The design includes 9 coils, which are wound with copper wire with a diameter of 3 mm. It is necessary to do 70 turns in all coils. To place them, you should equip a non-magnetic base.
Axis. It is done in the middle of the rotor. It is necessary to center the structure, otherwise it will crumble under the influence of the wind.

They put the rotor and stator and at a distance of 2 mm. The windings are combined in such a way that a 1-phase AC source is obtained.

Creating the blades

In windy weather, 3.5 kW of power can be extracted from the finished device. With an average intensity of the air flow, this figure is not more than 2 kW. The device is silent when compared with models on an electric motor.

You should think about the place of installation of the blades. In this example, a simple modification of a wind turbine is made horizontal type with three blades. You can try to make a vertical version, but its efficiency will be reduced. On average, it will be 0.3. The only advantage of this design will be the ability to work in any direction of the wind. Simple blades are made using the following materials:

Wood. Its disadvantage is the appearance of cracks some time after launch.
Polypropylene. Perfect option for small generators.
Metal. It is considered a durable and reliable material from which blades of any size can be made. Duralumin is best suited in this case.

It is one thing to make blades for a wind turbine with your own hands, and quite another to ensure a balanced design. If all the nuances are not taken into account, a strong wind will easily destroy the mast. As soon as the blades are made, they are installed together with the rotor on the mounting site, where the tail section will be fixed.

With the annual increase in prices for utilities, people, in order to save money, are trying to use alternative sources of energy and heat. One option is autonomous electricity. There are several different sources: solar panels, diesel or gasoline generators, hydro installations, wind turbines (wind turbines). This article is about a device that generates electricity using wind, namely : how to make a 220V wind generator with your own hands and whether this device will meet your expectations.

One of the many wind turbine designs

It is possible to find a great many different examples of assembling wind generators on the net, but they are all divided into two classes: vertical and horizontal. Each class has subspecies:

Vertical:

Industrial. The height of such power plants can reach more than 100 meters, the power varies from 4 to 6 MW.

Devices for household purposes. There are models made in specialized factories and do-it-yourself devices;

Horizontal:

Standard;

Rotary.

The entire class of do-it-yourself devices, whether they are wind farms or industrial ones, work on the principle of electromagnetic induction, that is, magnets fixed in the rotor generate alternating current when the blades rotate. It is supplied to the storage batteries through the controller. This is a device that converts alternating current to direct current and controls the degree of charge of batteries.

The next node is an inverter that converts direct current into alternating current and equalizes the fluctuation of electricity to a value of 50 Hz, then the current is supplied to consumers.

Note! The controller switches the flow of electricity directly to the inverter when the batteries are fully charged.

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Let's try to figure out what an RCD is, its capabilities, features of work and applications. And also consider the nuances that you need to pay attention to when choosing.

The use of wind power generators at home

Based on the above factors, the question arises: why not install a windmill in every house? The answer has two main points:

Price. The cost of devices of sufficient power is very high. For example, the cost of a unit with a power of 2 kW and a voltage of 24 V is from 75,000 rubles;
The average wind force in most regions does not even reach 4 m/s.

That is, the use of windmills as the main source of energy is irrational. IN standard house, with the simultaneous operation of all household appliances, up to 1 kW per hour is consumed, and during the operation of powerful power tools, this figure increases, increasing the required voltage in the network.

To ensure uninterrupted power supply, you will need at least: a set of three wind turbines of 3 kW, or one with a capacity of at least 10 kW; several batteries of sufficient capacity; reliable controller and inverter.

Installation of the entire system will cost at least 400,000 rubles, and with variable wind speeds, this method of power supply is no longer relevant.

It is advisable to use self-assembled 220-volt windmills as an alternative source of energy. Together with solar panels, a fuel generator of sufficient power or with a central power grid.

Important! With a combination of sources, it is necessary to include ATS in the system (automatic switching on of backup power). This device controls the power supply by changing the power source.

How to make a wind generator with your own hands

To mount this device at home you will need:

Thorough knowledge of an electrician;
Power supply. It can be an alternator or an asynchronous motor.
A safe place to install the device. Since the weight of individual household units can reach from 200 to 800 kg.
neodymium magnets. This class of magnets has greater performance;

Wires of suitable section;
Materials for mounting the frame and the windmill itself.

After carrying out all the preliminary activities, you will need to choose a power source that suits your needs. With limited financial resources, two budget options are possible:

Automobile generator;
Asynchronous motor from a washing machine.

Each option has its positive and negative sides.

Related article:

In the article, we will consider in detail what this equipment is for, types, connection diagrams, average prices and technical characteristics, how to do it yourself.

Do-it-yourself wind generator option from a washing machine

Recommendation! Neodymium magnets are very powerful, be extremely careful when working with them.

In order to save time and nerves, a simpler option is to buy a ready-made rotor of a suitable size. It is rational to use such an engine in a device with small dimensions.

Making a wind generator with your own hands from a car generator

This option also needs to be improved, as the standard sample operates at 5000 - 6000 rpm. The upgrade includes:

The device is equipped with neodymium magnets. They are installed in a strict order, that is, the poles alternate. For convenience, a template is cut out of thick cardboard;

The stator winding is rewound. The number of turns increases, therefore, the cross section of the wire decreases.
There are no magnets as standard, so the central shaft must be made of a non-magnetic material, such as titanium.

But even if all the requirements for optimal voltage are met, the rotor must rotate from 500 times per minute.

General negative characteristics:

Both options are short-lived, requiring annual repair or replacement;
The generated power is not enough for a full power supply;
Needs significant improvement.

If you already have the necessary knowledge and roughly know how to make a 220V wind generator with your own hands, it will be more rational to mount a unit of greater power.

When assembling a horizontal or vertical wind turbine with your own hands, observe the rigidity of the entire structure, from the blades to the control braces. Unreliable structural components can lead to an accident.

Video: do-it-yourself wind generator 24V 2500W

Installation of the supporting structure and blades

When building a vertical windmill for a home with your own hands, Special attention is given to the basis of the entire structure, since the unit itself should be raised as high as possible above the ground. This will require more serious financial investments, but the energy saved will pay off these costs over time. The higher the structure, the higher the wind speed, therefore, for a device with large dimensions and weight, foundation preparation is required.

The blades of any type of device should be mounted at a certain angle, both for vertical and horizontal devices.

Important! In stormy winds, the operation of windmills is not recommended, as the blades may not withstand heavy loads. Provide an emergency stop for the rotor in your design.

Outcome

Wind generators, although complex in design and require constant attention, are indispensable in places remote from the power line, as an alternative source of electricity. Completely safe from an environmental point of view. Therefore, we hope that after reading this article and watching the video instruction, you will be able to make a 220V wind generator with your own hands, both vertical and horizontal, and provide your home with an alternative source of electricity.

If you have a house, an old computer cooler, you can build an excellent wind turbine that will produce electricity. A mini wind generator is a great thing, especially for areas with frequent and strong winds. We will learn about the features and technology of its manufacture further.

How to make a mini wind generator with your own hands

Work on a mini wind generator should begin with the manufacture of drawings for a future wind turbine. In addition, materials should be prepared in the form of:

thick plastic bottle;
an old cooling cooler or fan, the power of the generator itself directly depends on its size and power;
low-current wire in the amount of 5-8 meters;
wooden beam, the section and dimensions of which are determined individually;
two steel pipes that go one into one;
diodes;
epoxy adhesive and super adhesive composition;
fasteners in the form of lingering ties;
old CD.

First of all, you need to start work by finding a suitable cooling mechanism. We suggest using a cooler from an old computer. Initially, the cooler is disassembled, its propeller part is on electric motor. Most often, it is fixed on the retaining ring, it is located under the rubber seal. After dismantling the O-ring, remove the blades on the fan.

This is followed by the process of soldering the cables that ensure the operation of the generator set. There are two wire connections on the copper coils of the fan, they are connectors on the coils. One of the sections is distinguished by the presence of a connected copper wire, and the second has two wires. Two wires are connected to the legs of one wire by soldering.

At the next stage of creating a small wind generator, a rectifier is being created. The main function of this device is to convert AC to DC. For these purposes, four diodes are required, they are cut so that one pair from the black mark remains with a 10 cm segment. The long end of the diode is bent, so you get a U-shaped connection. All diodes are interconnected by soldering. To test the wind generator, connect diodes to it, if the LED works, then the wind generator is functioning correctly. The outer plastic part of the cooler is removed, to process all the bumps, use a knife.

Next is the manufacturing process of the wind turbine blade. To make the blades, use an old bottle, such as a shampoo bottle. The top and bottom of the bottle are cut off. You will get a cylindrical product, it needs to be cut along. Pre-make a drawing in the form of blades, according to it, cut out the blades for the wind generator from the bottle. Please note that the end of the blades must be cut at an angle of one hundred and twenty degrees. This is followed by the process of fixing the blades on the cooler.

The next step is the manufacture of the windmill shank. To fix the motor, a beam made of wood is used. Its rotation is carried out using steel tubes. For the manufacture of the shank, use an unnecessary disk. The wooden block is equipped through hole, its diameter should be slightly larger diameter steel pipe. If the tube is loose, fix it with epoxy glue. At the end of the bar, a cut is made for mounting the disk. The place where the motor is connected to the bar must also be treated with an adhesive. Wires and soldering are also recommended to be coated with glue to prevent corrosion.

The following is the process by which the support is made. For its construction, use two pipes. One of them is fixed on wooden block, and the second is set in relation to rotation. To connect them, you can use bearings, and to improve sliding, use fluoroplastic.

DIY mini wind generator from a motor

We offer the option of manufacturing a wind generator from a motor from an old printer. This model differs in average productivity and works, even at the slightest wind. To operate the wind generator, you will also need a battery, the maximum power of the device is 100mA.

As the main part of the windmill, a motor is used, from an idle inkjet printer. The printer must first be disassembled and the motor removed from it.

A transistor is used to hold the blades. It must be drilled in relation to the size of the installed shaft. Further, all details are fixed using adhesive composition epoxy based. In addition, with the help of this composition, the most important parts of the device are protected from moisture and bad weather.

Using a segment plastic pipe, about 12 cm in diameter, cut out the blades for the windmill. For these purposes, a cutting machine is used. Optimal value the width of the part is 90 mm, the holes are made with a special tool, and then the shaft is mounted on the generator motor using screw connections.

A pipe with a diameter of 55 mm is used as the basis for the manufacture of a windmill. Use plywood to make the tail. The motor is installed inside the pipe, Next, the construction of the rectifier is carried out. Since the motor does not produce a large amount of electricity with a small wind. Thus, it is possible to apply the doubling scheme, which is connected in series.

The schema is set to plastic bag and is installed inside the pipe together with the rectifier. Next, the motor is fixed with a wire. In addition, all holes are sealed with a silicone gun. One hole is used to drain water, and the second to evaporate condensate masses.

A bolt and wire are used to fix the tail of the wind generator. Thus, it will be possible to securely fix the installation. Watch the rigidity of the resulting joints.

In order to build a mast for installing a windmill, use bars connected to each other with self-tapping screws. Fix the windmill on the mast and install it in the pre-allocated place. With the help of such an installation, it is possible to charge a mobile phone or organize a backlight.

We make a mini wind generator with our own hands

Before starting work on a wind generator, you need to determine the number of winds in your climatic region. Gray-green - windless zones imply the use of sail-type wind turbines only. If it is necessary to provide direct current, a device in the form of a booster is added to them. This device performs the function of a rectifier, and also stabilizes the voltage. You will also need a charger, a high-power battery, a converter. The cost of manufacturing this installation is prohibitively high and is not always justified.

In areas with weak winds, indicated yellow, it is possible to manufacture a low-speed wind generator. These devices perform well.

For windy regions, any wind turbine is suitable. Most often, vertical-type devices are used - blades or sailboats.

In order to perform calculations to determine the power of a wind turbine, it is necessary to take into account such factors as:

constant wind speed in a particular region;
air is a continuous medium, therefore, the power of the wind generator depends on the quality and performance of the rotor;
air currents have kinetic energy.

We offer to consider the features of sailing wind turbines. These devices are made of wear-resistant material that perfectly resist the winds. If you decide to make such an installation yourself, then you must first of all carry out a series of calculations related to these devices.

As a material for the manufacture of a wind generator, you can use various pieces of iron that are lying around in your home. The most expensive item is the battery. Its power determines the size of the installation and its performance.

Making a homemade axial-type wind generator at home is quite simple. Work should begin with the mast. For its manufacture, pipes are most often used, they must be different in diameter. A welding machine is used to connect pipes to each other. The mast is installed on a concrete platform. At the same time, several meters of it go deep into the ground to obtain a stable structure. On individual parts of the installation, two magnets must be glued. For a stronger fixation, they are additionally poured with epoxy resin.

This is followed by the process of making molds and plywood. For these purposes, coils connected by a phase are used. The stator manufacturing process looks like this: wax paper is installed on a previously cut plywood square. This is followed by the installation of plywood, on which holes for mounting the stator are pre-cut. This is followed by the process of mounting a glass cloth mug and coils are installed.

After that, the finished stator is removed from the previously prepared mold. For the manufacture of the screw, a duralumin pipe is used. The screw is made with a diameter of one meter. To cut blades, use electric jigsaw. In the central part of the installation, equip a hole with which the screw will be fixed on the generator.

The wind generator has a tail element displaced with respect to the axis. With strong gusts of wind, pressure occurs on the surface of the wind generator and it shifts to the side. This scheme allows you to protect the device from strong winds. This wind generator model allows you to generate enough energy to provide street lighting for the house. It is not difficult to make a wind generator, the main condition for obtaining a quality device is to compare the wind strength in your region with its power.

Do-it-yourself mini wind generator manufacturing technology

For wind turbine manufacture, a minimum supply of tools and materials is required. We offer a variant of the construction of a mini wind generator for summer cottages. This device is able to provide a small house with a minimum number of electrical appliances - electricity.

For the manufacture of such a wind generator, you will first need a disk on which magnets are installed. This is followed by the process of winding copper coils, which are filled with resin. For rotation, the generator is installed on a previously provided base.

These wind generators are distinguished by good performance and high-quality work. The ratio of the magnet to the poles is two to three, if the wind generator has two phases, a ratio of one to three is sufficient for a single-phase device. All poles are related to each other depending on the coil options used.

The power of a wind generator is determined primarily by the size of the magnets used in its construction. As a mast for the generator, it is enough to use a steel pipe or a log. It is not necessary to use new batteries, any devices that are suitable in terms of power will fit.

It is possible to manufacture several wind turbines at once, while each of them will perform certain functions - one provides a home with light, the second is responsible for the operation of the TV, and the third is for night lighting.

Payment for electricity today occupies a significant share in the cost of maintaining a home. IN apartment buildings, the only way to save money is to switch to energy-saving technologies and optimize costs under multi-tariff schemes (night mode is paid at reduced prices). And if available personal plot you can not only save on consumption, but also organize independent energy supply for a private house.

This is a normal practice that originated in Europe and North America, and for the last couple of decades it has been actively introduced in Russia. However, equipment for autonomous power supply is quite expensive, payback "to zero" comes no earlier than 10 years later. In some states, it is possible to return energy to public networks at fixed rates, this reduces the payback time. IN Russian Federation to apply for a "cashback" you need to go through a series of bureaucratic procedures, so most users of "free" energy prefer to build a wind generator with their own hands, and use it only for personal needs.

The legal side of the issue

A home-made wind generator for a home does not fall under prohibitions, its manufacture and use does not entail administrative or criminal punishment. If the power of the wind generator does not exceed 5 kW, it belongs to household appliances, and does not require any coordination with the local energy company. Moreover, you do not need to pay any taxes if you do not make a profit from the sale of electricity. In addition, a home-made generating windmill, even with such a performance, requires complex engineering solutions: it is easy to make it. Therefore, homemade power rarely exceeds 2 kW. Actually, this power is usually enough to power a private house (of course, if you do not have a boiler and a powerful air conditioner).

In this case, we are talking about federal law. Therefore, before deciding to make a windmill with your own hands, it would not be superfluous to check the presence (absence) of subject and municipal regulatory legal acts that may impose some restrictions and prohibitions. For example, if your home is located in a specially protected natural area, the use of wind energy (and this is a natural resource) may require additional approvals.

Problems with the law can arise in the presence of restless neighbors. Windmills for the home are individual buildings, so they are also subject to some restrictions:

Varieties of generators

Before deciding how to make a wind generator with your own hands, consider the design features:

According to the location of the generator, the device can be horizontal or vertical

By nominal generated voltage

Typical examples of homemade wind turbines

The device of the wind generator is the same, regardless of the chosen scheme.

Propeller, which can be installed both directly on the generator shaft, and using a belt (chain, gear drive).
The actual generator. This can be a ready-made device (for example, from a car), or a conventional electric motor that, when rotated, generates an electric current.
Inverter, voltage regulator, stabilizer - depending on the selected voltage.
Buffer element - rechargeable batteries that ensure the continuity of generation, regardless of the presence of wind.
Mounting structure: mast, roof mounting bracket.

Propeller

It can be made from any material: even from plastic bottles. True flexible blades significantly limit power.

It is enough to cut cavities in them for wind intake.

A good option is a household windmill from a cooler. You get a ready-made design with professionally made blades and a balanced electric motor.

A similar design is made from a cooler for computer power supplies. True, the power of such a generator is scanty - except to light a lamp on LEDs, or charge a mobile phone.

However, the system is quite functional.

Good blades are obtained from aluminum sheets. The material is available, it is easy to mold, the propeller is quite light.

If you are building a rotary propeller for a vertical generator, you can use tin cans cut along. For powerful systems, halves of steel barrels are used (up to a volume of 200 liters).

Of course, you will have to carefully approach the issue of reliability. Powerful frame, shaft on bearings.

Generator

As mentioned above, you can use a ready-made automobile, or an electric motor from industrial electrical installations (household appliances). As an example: a wind generator from a screwdriver. The whole structure is used: engine, gearbox, cartridge for attaching the blades.

The compact generator is obtained from the stepper motor of the printer. Again, the power is only enough to power an LED lamp or a smartphone charger. In nature - an irreplaceable thing.

If you are “on you” with a soldering iron and are well versed in radio engineering, you can assemble the generator yourself. A popular scheme: a wind generator with neodymium magnets. Design advantages - you can independently calculate the power for the wind load in your area. Why neodymium magnets? Compactness with high power.

You can remake the rotor of an existing generator.

Or create your own design, with the manufacture of windings.

The efficiency of such a windmill is an order of magnitude higher than when using a circuit with an electric motor. Another indisputable advantage is compactness. The neodymium generator is flat and can be placed directly in the propeller's center sleeve.

Mast

The manufacture of this element does not require knowledge of electronics, but the viability of the entire wind turbine depends on its strength.

For example, a mast with a height of 10–15 meters requires well-calculated guy wires and counterweights. Otherwise, a strong gust of wind can overwhelm the structure.

If the generator power does not exceed 1 kW, the weight of the structure is not so large, and the issues of mast strength fade into the background.

Outcome

Homemade wind generator - not like that complex structure as it might seem at first glance. Given the high cost of factory products, you can save a lot by making a home wind farm and quite affordable materials. Given the small cost of creating a windmill, it will pay off quickly enough.

How to make a 220V do-it-yourself wind generator

To provide a private house with a constant flow of electricity at an average wind speed of 4 m / s, it is enough:

0.15-0.2 kW, which go to basic needs;
1-5 kW for electrical equipment;
20 kW for the whole house with heating.

At the same time, it should be borne in mind that the wind does not always blow, therefore, with your own hands, a windmill for the house should be provided with a battery with a charge controller, as well as an inverter to which the devices are connected.

For any model of a homemade windmill, the main elements will be required:

rotor - the part that rotates from the wind;
blades, usually they are mounted from wood or light metal;
a generator that will convert wind power into electricity;
a tail that helps determine the direction of air flow (for a horizontal version);
horizontal rail to hold the generator, tail and turbine;
match;
connecting wire and shield.

In the complete set of the shield there will be a battery, a controller and an inverter. Consider two options for how to build a wind generator with your own hands.

Related article:

You are familiar with the problem of power outages, which manifests itself in the flashing of light bulbs. In the article we will talk about how to choose the right 220v voltage stabilizer for your home in order to forget about this problem once and for all?

Features of assembling a wind generator from a washing machine with your own hands

Consider how to make a 220V wind generator with your own hands using an old-style engine.

Table 1. detailed instructions wind turbine from a washing machine with a photo

What needs to be done	Photo example
You should buy neodymium magnets that are mounted in recesses on the motor rotor. The recesses themselves are made on lathe, please refer to the diagram for correct placement.
Glue the magnets with superglue into the prepared recesses. Then, they should be wrapped with paper, and the rest of the space should be filled with epoxy.
Next, we prepare the axis, which is better to order from a turner. Inside the hollow structure there should be room for the cable and a hole for its entry. We mount the holder from an iron rod. For it, we use a grinder, with which we cut off two tubes (fix the generator on them), and weld on the other end.
We turn to the blades, which can be made from 16 cm pipes for external sewage. In this case, use a jigsaw.
It remains to assemble the wind generator, securing all the elements. To begin with, we attach the generator, blades, rotor and tail to the carrier rail. Do not forget to close the generator with a casing.
The power plant should be attached using a hinge mechanism, and the mast is mounted in concrete base for 4 bolts.
Route the wire to the switchboard.
Connect all elements and perform a performance test.

To make it easier to understand the whole sequence of actions when assembling a wind farm with your own hands from an old one, watch the video:

Features of assembling a vertical wind generator from a car generator with your own hands

When "homemade" people think about how to make 220V wind turbines with their own hands, they most often use car generators as a basis. It is easy to assemble, and for work you will need:

generator 12V from car;
battery;
converter from 12 to 220 W with a power of 1.2 kW;
barrel or bucket aluminum or steel for the blades;
control lamp from the car;
switch;
voltmeter;
copper wires with a cross section of more than 2 mm;
clamp for fastening.

To assemble a vertical wind generator with your own hands, you will need a tape measure and a pencil, a set of keys, an electric drill and a grinder, as well as metal scissors. Detailed installation instructions are given below.

Table 2. Assembly of a vertical wind generator from a car generator

Action	Image
The prepared metal container must be marked and cut into 4 equal parts, but this must not be done completely. In each part, drill holes for the bolts, which should be symmetrical.
The blades that are not completely cut are slightly bent, the rotation speed directly depends on this process, so decide in advance in which direction the equipment should rotate.
It is necessary to fix the blades on the pulley, and install the generator on the mast using clamps, and also assemble the wiring according to the prepared scheme.
The main thing is to correctly connect the wires to which the battery is connected in the shield, as well as the converter.

To make it easier for you to navigate, watch the video on the option of assembling a wind generator from a car generator with your own hands.

Let's make a wind generator with our own hands. Homemade wind generator for home and garden: principles of operation, schemes, what and how to make Homemade mini wind generator

Source of electricity

How to choose a wind generator for a private house

How to make a windmill with your own hands

powerful models

Wind generator with a capacity of more than 1 kilowatt

Do-it-yourself vertical windmill (5 kW)

Vertical lines

Sun

Daria

orthogonal

Helicoid

Barrel-barrel

Lenz wind generator

final assembly

How to make a wind generator from a car generator

How to make a wind generator with your own hands

Do-it-yourself wind generator option from a washing machine

Making a wind generator with your own hands from a car generator

Video: do-it-yourself wind generator 24V 2500W

How to calculate and choose a wind generator

Making a generator for a windmill

DIY wind generator from a stepper motor

Rotary wind turbine

Starting stage of the plant manufacturing

Advantages and disadvantages of a rotary windmill model

Windmill with your own hands. Fun or real savings

Generator

Wind turbine power source

Rotary installation

Manufacturing algorithm

Assembly of equipment on the ground

The principle of operation of the wind turbine

Scheme of a homemade wind generator main components

General principle of operation

Do-it-yourself wind generators for 220 v

The main types of wind turbines and their features

Manufacturing instructions

Generator Assembly

Creating the blades

The use of wind power generators at home

How to make a wind generator with your own hands

Do-it-yourself wind generator option from a washing machine

Making a wind generator with your own hands from a car generator

Video: do-it-yourself wind generator 24V 2500W

Installation of the supporting structure and blades

Outcome

How to make a mini wind generator with your own hands

DIY mini wind generator from a motor

We make a mini wind generator with our own hands

Do-it-yourself mini wind generator manufacturing technology

The legal side of the issue

Varieties of generators

According to the location of the generator, the device can be horizontal or vertical

By nominal generated voltage

Typical examples of homemade wind turbines

Propeller

Generator

Mast

Outcome

Related videos

Vertical option

Horizontal Models

How to make a 220V do-it-yourself wind generator

Features of assembling a wind generator from a washing machine with your own hands

Features of assembling a vertical wind generator from a car generator with your own hands

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