How to make a wind generator from a car generator?

Wind generators (wind turbines, wind power plants) are today considered one of the cheapest sources of alternative electricity. They are less common than solar panels. However, the electrical energy produced by solar cell batteries is many times more expensive. This means that a wind turbine in a personal household can be a very effective and useful source of additional electrical energy. In particular, it can become profitable if you do not purchase a factory installation, but do it yourself from a car generator. A homemade wind generator will come out much cheaper than a factory device.

There are a large number of varieties of wind generators and drawings for their creation. But despite the variety of types, all structures have the following integral components in their structure:

• electric generator;
• rotor with blades;
• storage battery;
• mast (sometimes with and without guy ropes);
• electrical energy converter (inverter);
• electronic unit (charge controller);
• the wiring through which electrical energy passes.

Before you get started you should decide what specific device you want to make, since several types of wind generators are practiced, for example, rotary, axial (axial) with magnets, and so on.

There are 2 options for axle placement:

• horizontal - the most common, the efficiency of this type is twice as large;
• vertical - mounted at the bottom, since it has a large mass. Since the wind below is twice weaker, therefore, the power of the installation is reduced by about 8 times. Of the advantages - low noise level and ease of use.

Regardless of the design model, to create a homemade wind generator, you must prepare:

• car generator;
• voltmeter;
• battery charging relay;
• voltage regulator for alternating electric current;
• material for creating blades;
• rechargeable battery (helium or acid);
• box for closing the wiring;
• container (non-corrosive saucepan or aluminum bucket);
• 12 V switch;
• electrical 3-core cable (with a cross-section of at least 2.5 mm2);
• an old water pipe (at least 15 millimeters in diameter, 7 meters long);
• a charging light;
• 4 bolts with washers and nuts;
• iron clamps for fixing.

Along with this, you need to have specialized tools for work:

• grinder with discs;
• marker;
• screwdriver;
• electric drill with drills;
• scissors for metal;
• set of spanner keys;
• gas keys of various rooms;
• nippers;
• roulette.

When creating a wind power plant it should be taken into account that the rotor of any automobile generator, even from a VAZ, has an electromagnetic excitation winding. If you do everything yourself, its design can be made simpler. It is necessary to remove the collector, rewind the stator winding, which will make it possible to convert the device into a low-speed one. It is advisable to remake the iron rotor.

This should be done with a slight stretch. On the surface of the band, markings are made and rectangles of magnets made of neodymium are placed using superglue. They are glued to the unit with a slight bias, which prevents sticking, observing the alternation of the poles. Epoxy is poured between these elements, which makes it possible to level the surface.

Such a wind power plant will produce the amount of electricity that meets the needs only at a speed of 6,000 rpm. To make it efficient even at 600 rpm, you need to increase the stator winding by 5 times. In parallel, the cross-section of the power drive itself should be made smaller.

The blades of this wind turbine must be large. To lower the magnetic field, it is advisable to sort out the stator plates, align them, and then mount them back.

The blades are probably the most significant part of a wind turbine. The operation of other units of the installation directly depends on their design.... They are made from various materials, sometimes even from a sewer polypropylene pipe.

The manufacturing sequence of the vane system is as follows.

1. It is required to calculate the length of the blade. The pipe diameter should be 1/5 of the total footage. For example, if the blade is equal to a meter, then a pipe with a diameter of 20 centimeters will do.
2. We cut the pipe with a jigsaw along the length into 4 segments.
3. From one segment we make a wing, which will serve as a model for cutting out the rest of the blades.
4. We process the burrs at the ends with an abrasive.
5. The blades are fixed to an aluminum disk with welded strips for fixing.
6. Then we attach an electric generator to this disk.

At the end of the assembly, the vane system balancing required. It is fixed on a tripod in a horizontal position. The event is held in a closed area from the wind. If balancing is done correctly, the wheel should be stationary. When the blades spin on their own, they need to be sharpened to balance the entire structure.

Only upon successful completion of this operation, it is necessary to proceed to testing the accuracy of rotation of the blades, they must rotate in the same plane without disturbing the balance. A deviation of 2 millimeters is permissible.

By and large, if a high-speed 2-blade propeller with a diameter of 1-1.2 meters is installed on an electric generator, then such revolutions are freely achieved at a wind speed of 7-8 m / s. Hence, you can make a wind generator without altering the generator, only it will function at a wind speed of 7 m / s.

To create a mast suitable water pipe with a diameter of at least 15 centimeters, approximately 7 meters long. If there are structures within 30 meters from the intended installation site, then adjustments are made in the direction of increase in the height of the device.

The base of the mast and stakes for fixing the guy wires are poured with concrete. Clamps with bolts are welded to the pegs. A 6mm zinc-plated wire rope is used for the guy wires.

To assemble a wind turbine, a pivot axle is required. It can be created from bearings and a 15 cm pipe elbow with nuts and threads. It is necessary to fill the pipe with epoxy in the bearing body, and pour it on a piece of plastic pipe with a diameter of 50 millimeters. The result is a movable axle.

Installation sequence of the wind generator:

• make a 60-centimeter beam from a 50 × 25 mm profile;
• fix it to the generator beam;
• fix the tail;
• make holes to fix the rotating axis;
• install the blades;
• fix the finished windmill on the mast;
• connect a small battery pack;
• connect a multimeter.

The wind turbine is assembled and ready for operation. This wind turbine can easily guarantee LED lighting, the operation of a TV receiver with a laptop and other little things in low wind conditions. But this is only in low wind conditions. With a powerful wind, the production of electricity increases significantly.

A wind turbine, like any mechanism, requires technical control and maintenance.

1. The slip ring needs special attention. Generator brushes are cleaned, lubricated and adjusted every 2 months.
2. At the first symptoms of a blade malfunction (vibration and imbalance of the wheel), the wind turbine is lowered to the ground and repaired.
3. The steel elements are coated with anti-corrosion paint every 3 years.
4. The fasteners and the tension of the cables are constantly examined.

When the installation is over, you can connect the equipment and use electricity.

How to make a wind generator from a car generator, see below.