wind generators is the device responsible for converting raw wind power into electricity.
This takes place when the rotational movement generated by the blades enters the generator through the shaft. There, the rotation helps to create an electromagnetic field that produces electrical power at a maximum of hundreds of volts. The electricity then travels to a transformer where the voltage will be increased before being sent out for distribution.
wind generators, at least in a horizontal axis wind turbine, is found in the nacelle. This is the portion of the turbine apparatus that is located directly behind the wind turbine blades. Some may also refer to this area as the gear box. Usually, the generator is located at the very back of the nacelle, and is the farthest piece of equipment from the blade.
wind generators cannot generate very much electricity in and of itself. Larger generators can possibly generate a little more power, but they are not commonly found in wind turbines. The size of the wind generators is limited by the size of the nacelle, and the weight at the top of the tower. Because of this, wind turbines are generally set up in large groups called "wind farms," or "windmill farms."
Although it specifically designed for use in a wind turbine, all generators work in much the same way. A current is produced using the principles of electromagnetism. The movement of magnets around a metal coil inside the generator, or the movement of a coil near a stationary set of magnets, produces a current of electricity, which can then be put to practical use. In the case of a wind power, the movement inside the wind generators is generated by the turning of the blades.
This is different than what most generators will use to produce the movement that generates the electricity. For common household generators, the most common power source is gasoline, kerosene or diesel. A wind generators is considered one of the cleanest forms of energy, simply because its power source burns no fossil fuels, creates no pollution, and is totally renewable.
As with any piece of equipment with moving parts, wind generatorss may break down from time to time. Those who repair these generators and other wind turbine parts are specifically trained for such tasks. In areas where they are especially prevalent, there are courses offered at community colleges and vocational colleges that teach such skills and provide hands-on learning opportunities.
Descended from the windmills that pumped water and ground grain on domestic farms, the wind turbines on wind farms generate electricity as passing breezes spin their blades, helping to meet the growing demand for producing energy through more environmentally friendly means. Although those turbines are too large for individual households, you can build a smaller version of those turbines to supplement your household power or to provide it if you live too far from a power grid. Here's how to build a wind turbine.
Determine the average wind speed in the area you plan to build. To be cost-effective, an efficient wind turbine needs to be exposed to winds of at least 7 to 10 miles per hour (11.2 to 16 kilometers per hour) to generate electricity and performs best at speeds from 12 to 20 mph (19.2 to 32 kph). To find the annual average wind speed for your area
Know the building codes related to erecting windmills and wind turbines. The building codes may stipulate the minimum required distance between turbines, as well as how far away the turbine has to be from the property line.
Evaluate how much horizontal and vertical clearance you have for the wind generators. Although the turbine itself doesn't require much space, to avoid potential conflicts with neighbors, you should have at least half an acre (0.2 hectare) of space for a turbine that generates up to 3 kilowatts of power and a full acre (0.4 hectare) for a turbine that generates up to 10 kilowatts. You should also have enough vertical space to build the turbine high enough so that buildings and trees don't block the wind.
Decide whether to build or buy the wind turbine blades. Although the older farm windmills were basically small sails attached to a rotating shaft, wind turbines resemble giant propellers with their large teardrop-shaped blades. These blades have to be sized and pitched correctly for the turbine to work properly. They should be anywhere from 20 to 60 percent of the height of the windmill itself.
Choose a generator. Your wind turbine needs to be connected to a generator to produce electricity. Most generators are direct current (DC), which means that to use them to provide household current, you'll need to connect the generator to a power inverter to produce the alternating current (AC) that household appliances use. You can, however, use an AC motor as a generator, although there may not be sufficient residual magnetism to produce a strong enough electric field.
If you decide to buy a DC generator, look for one rated for high voltage and current and low rotation speed (several hundred instead of several thousand revolutions per minute). You need to generate at least 12 volts over a consistent period of time. Your generator should be connected to a deep-cycle battery bank and charge controller in between the generator and inverter to protect the inverter and battery from power spikes and to provide continuing power to the inverter during low-wind periods.
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