Wind generator

Using the devices to generate electricity from alternative becomes less exotic every year.One of the sources of renewable energy is wind.To convert the kinetic energy of wind into electricity, it is necessary to use a special machine called a wind generator.Wind can be purchased in the store, but it is possible to make it by yourself.

What

wind generator wind generator is a turbine for the production of electricity from wind energy.This renewable source used since the seventh century AD.For centuries, people built windmills, the blades that rotate the millstones, even the grinding grain into flour.The main driving force of wind generators is an ordinary evening.The energy, which he has, depends on the so-called wind density.The installation of wind turbines in suitable places where this figure is the highest.

To determine the meteorological parameters experts measure the force of the wind, weather patterns make the spread of the winds, their speed is calculated depending on the height above sea level, as well as the density of the air masses.From these indicators depends feasibility of installing a wind generator in a particular area, determined by the height of its location, the number of blades on a single installation.With the development of electrical engineering, wind turbines today can not only generate electricity but also to store it in a conventional battery.Advantages

wind generators is that it requires no fuel for their bulky complex electrical devices.Wind power is free, so only have to spend money on the purchase and installation of equipment.In the process of power generation wind turbines do not emit any harmful substances, they are absolutely environmentally friendly.

However, such installations have a number of disadvantages:

• movable part of the device too quickly wear out.
• As a result of the gear portion of the power is lost.
• One windmill is not able to produce large amounts of electricity, for a complete household need to use multiple power settings.

Despite the relatively high cost of wind power today is used in many countries around the world.The proportion of energy produced in this way, is growing steadily.Especially beneficial windmills where constant winds.

principle of operation and type of wind turbine Modern wind

devices are both with vertical and horizontal axis.At home, the better to build a wind turbine with a horizontal axis.It can provide power household or small-scale production.Horizontal wind turbine consists of the following main parts:

• Transmission, working on the principle of the gear, which consists of multiple gears of different diameters.
• rotor shaft, on the end of which there are blades.
• electric generator required power.
• braking system.

main structural elements of the horizontal wind turbines are considered to be an electrical generator and the rotor shaft.Sometimes a system equipped with an additional motor, which allows you to receive energy from the blades in the event of emergency situations.If a wind turbine has a sufficiently high capacity, it is equipped speed gearbox, which helps regulate the optimal rotation, depending on the needs and the strength of the air flow.Powerful blades of wind turbines are made of durable metal alloy, is not subject to deformation, as well as the effects of strong winds and rainfall.

device vertical wind turbine is characterized in that the rotor shaft he is upright.The main advantage of this arrangement is that the generator does not need a large power wind.It does not matter how fast it blows.In addition, a wind turbine is not necessary to raise high above the ground.Devices transmission and conversion unit into electrical energy may be quite close to the ground, which greatly facilitates their maintenance.The disadvantage of this design is that the shaft speed is not very large, which significantly reduces the power factor.To increase this figure, in many models installed an additional engine, which to generate large amounts of electric current accelerates turbine windmill.

wind generator working principle is clear even to a child.Blowing air on the surface of the earth, due to the laws of aerodynamics, it turns the blades, which in turn rotates a shaft connected to a generator.The generator, as it is necessary, converts kinetic energy of rotational motion into electrical energy.Electricity is supplied to the house through a system of distribution equipment, which often includes for its accumulation.

How to build a windmill with his hands

independently to make a wind generator is quite simple.Unlike solar panels, components for which you want to acquire and collect the complex scheme.Wind generators can make improvised.

The first step is to develop the drawing, whose complexity depends on the type of plant.Wind generator, having a horizontal axis, is much easier to assemble and install, so for the production of electricity in the country or in the home is the best option.Especially you should try with the selection of the optimal places to install wind turbine.Consider the need to stay the region, a wind rose in him, as well as the location of various communications and electrical wires in the yard.

to create their own hands home wind generator is required:

• electric generator which need to purchase, if you are not a specialist in electrical engineering, able to self-produce it.However, for this purpose is quite suitable generator from the car of any model.It is better to stay at the induction generator as DC devices are not able to produce large amounts of electricity.It is best to fit a small 30-volt units.
• desired size turbine blades.
• post the required length for the installation of wind turbine.
• batteries.
• gearbox or transmission.
• control unit.

Craft blades can be made of metal, PVC, and even from wooden planks.When choosing a metal blade support should be strong enough to support their weight.The tree is short-lived and ill-suited for year-round operation.In this regard, the best option is seen blades manufacture of PVC.As preparations suitable conventional sewer pipes that need to be cut in half, then a quarter, then cut the pattern.

Some craftsmen attach the blade to the neodymium magnets, which can significantly reduce the loss of power without any impact on the parameters of the generator.

stand base of the blades are made of any plate or metal gears.It several holes are drilled so that screws could be attached vane.Above the blades bolted hub made of the same gear.To this land no water, you can close the lid.For the windmill to manufacture tail, in which the generator is installed.For this purpose, you will need a piece of wood of small size.On one side of the engine mount of the bar, while the other shank, which is made of stainless steel or aluminum.When the whole system is assembled, it is attached to the propeller.After that, you can consider the production of the top unit complete wind turbine.Now the assembled structure is mounted on a column filled with concrete solution, connect the cables and switchgear.

described a homemade wind generator is unlikely to be able to satisfy all your needs.However, he is able to power up a couple of light bulbs in the yard, and you can enjoy the results of his work firsthand.If you decide to seriously move to renewable energy, wind turbine need to purchase a ready-made.Unfortunately the cost of high-quality wind turbines today is very high, reaching almost 1,000 US dollars, which makes their use in privately unprofitable.Maybe the time will come when the production of these devices will be put on stream and their costs will decrease significantly.Then we can talk about the benefits of wind energy seriously.