The principle of wind power generator is to use wind power to drive the windmill blades to rotate, and then increase the speed through the speed reducer to promote the generator to generate electricity. According to the current windmill technology, power can be generated at a breeze speed of about three meters per second (the degree of breeze).
Wind power generation is becoming a worldwide craze. Wind power generation has no fuel problems, radiation and air pollution.
Wind power generation is very popular in Finland, Denmark and other countries; China also strongly advocated it in the western region. Small wind power generation system is very efficient, but it is not just composed of a generator head, but a small system with certain scientific and technological content: wind generator+charger+digital inverter. A wind turbine consists of a nose, a rotor, a tail and blades. Each part is very important, and the function of each part is as follows: the blade is used to receive wind power and convert it into electric energy through the nose; The tail wing makes the blades always face the direction of the incoming wind to obtain the maximum wind energy; The rotor can make the nose rotate flexibly and realize the function of adjusting the direction of the tail; The rotor of the handpiece is a permanent magnet, and the stator winding cuts the magnetic field lines to generate electric energy.
Due to the unstable air volume, the wind generator outputs 13 ~ 25V alternating current, which must be rectified by a charger, and then the battery is charged, so that the electric energy generated by the wind generator becomes chemical energy. Then the chemical energy in the battery is converted into AC 220V commercial power by an inverter power supply with a protection circuit to ensure stable use.
Usually people think that the power of wind power generation is completely determined by the power of wind turbines, and they always want to buy a bigger wind turbine, which is not correct. At present, wind turbines only charge batteries, which store electric energy. The size of the power that people finally use is more closely related to the size of the battery. Strength mainly depends on the air volume, not just the strength of the nose. In the mainland, small wind power generation opportunities are more suitable than large ones. Because it is easier to be driven by small air volume to generate electricity, a continuous small wind will provide more energy than a temporary strong wind. When there is no wind, people can still use the electric energy brought by the wind normally, that is to say, a 200W wind turbine can get 500W or even 1000W or more power output through the cooperation of a large battery and an inverter.
The use of wind turbines is to constantly turn wind energy into standard commercial electricity for our families, and its saving degree is obvious. A family's annual electricity consumption only needs the price of battery liquid in 20 yuan. However, the performance of today's wind turbines has been greatly improved compared with a few years ago. Previously, it was only used in a few remote areas. Wind turbines are directly powered by 15W bulbs, which are flickering and often damage the bulbs. Nowadays, due to technical progress and the use of advanced chargers and inverters, wind power generation has become a small system with certain scientific and technological content, which can replace normal commercial power under certain conditions. Mountain areas can use this system to make a street lamp that doesn't cost money all the year round; Expressway can use it as a road sign lamp at night; Children in mountainous areas can study by themselves under fluorescent lamps at night; Wind turbines can also be used on the roofs of small high-rise buildings in cities, which is not only economical, but also a real green power source. Household wind turbines can not only prevent power failure, but also increase the interest of life. In tourist attractions, frontier defense, schools, troops and even backward mountainous areas, wind turbines are becoming a hot spot for people to buy. Radio enthusiasts can use their own technology to serve the people in mountainous areas in wind power generation, so that people can watch TV and use electricity for lighting in synchronization with the city, and they can also make themselves rich through labor.
Schematic diagram of wind turbine