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Transforming the kinetic energy of the wind into mechanical kinetic energy, and then converting mechanical energy into electrical kinetic energy, is called wind power generation. The principle of wind power generation is to use wind power to drive the blades of a windmill to rotate, and then increase the speed of rotation through a booster engine to drive the generator to generate electricity. According to windmill technology, a gentle wind speed of about three meters per second (the degree of gentle wind) can start generating electricity. Wind power generation is forming a trend around the world because it does not require the use of fuel, nor does it generate radiation or air pollution.
The devices required for wind power generation are called wind turbines. This type of wind turbine can generally be divided into three parts: the wind turbine (including the tail rudder), the generator, and the tower. (Large wind power plants generally do not have tail rudders, and only small (including household models) typically have tail rudders.) The wind turbine is an important component that converts the kinetic energy of the wind into mechanical energy, consisting of several blades. When the wind blows towards the blades, the aerodynamic power generated on the blades drives the wind wheel to rotate. The material of the blade requires high strength and light weight, and is often made of fiberglass or other composite materials (such as carbon fiber). (There are also some vertical wind turbines, S-shaped rotating blades, etc., which have the same function as conventional propeller blades.)
The use of wind turbines is to continuously convert wind energy into standard electricity for our households, and the degree of savings is obvious. A household's annual electricity consumption only costs 20 yuan of battery liquid. And the performance of wind turbines has greatly improved compared to a few years ago. Previously, they were only used in a few remote areas. The wind turbines were directly powered by a 15W light bulb, which was on and off, and often damaged the bulb. Due to technological progress and the use of advanced chargers and inverters, wind power generation has become a small system with a certain technological content, and can replace normal electricity under certain conditions. Mountainous areas can use this system to create a street lamp that is free of charge for years to come; It can be used as a night marker on highways; Children in mountainous areas can self-study at night under fluorescent lights; Wind turbines can also be used on the roofs of small high-rise buildings in cities, which not only saves energy but is also a truly green power source. Household wind turbines not only prevent power outages, but also increase the fun of life. In tourist attractions, border defense, schools, troops, and even underdeveloped mountainous areas, wind turbines are becoming a hot procurement topic for people. Radio enthusiasts can use their own technology to serve the people of mountainous areas in wind power generation, enabling them to watch TV and use electricity for lighting in sync with the city, and also making themselves rich through labor.