Wind power generation refers to converting kinetic energy of wind into electric energy. Wind energy is a clean and pollution-free renewable energy, which has been used by people for a long time, mainly by pumping water and grinding flour through windmills. People are interested in how to use wind power to generate electricity. Using wind power to generate electricity is very environmentally friendly and the wind energy is huge, so it is paid more and more attention by countries all over the world.
By the end of June 2023, the installed capacity of wind power in China was about 390 million kilowatts, a year-on-year increase of 13.7%. China is rich in wind energy resources, and the exploitable wind energy reserves are about 654.38+0 billion kW, of which the onshore wind energy reserves are about 253 million kW (calculated by the data of land height 10m), and the offshore wind energy reserves are about 750 million kW, accounting for 654.38+0 billion kW.
At the end of 2003, the installed power capacity of China was about 567 million kilowatts. Wind is one of the pollution-free energy sources. And it is inexhaustible. For coastal islands, grassland and pastoral areas, mountainous areas and plateau areas with water and oil shortage and inconvenient transportation, it is very suitable and promising to use wind power according to local conditions.
Offshore wind power is an important field of renewable energy development, an important force to promote wind power technology progress and industrial upgrading, and an important measure to promote energy structure adjustment. China is rich in offshore wind energy resources, so accelerating the construction of offshore wind power projects is of great significance for promoting coastal areas to control atmospheric smog, adjust energy structure and transform economic development mode.
principle
Converting the kinetic energy of wind into mechanical kinetic energy and then converting mechanical energy into electric energy is wind power generation. The principle of wind power generation 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 windmill technology, power generation can be started at a breeze speed of about three meters per second. ?
Wind power generation is becoming a worldwide craze, because wind power generation does not need to use fuel, nor does it produce radiation and air pollution. The equipment needed for wind power generation is called a wind turbine. This kind of wind turbine can be divided into three parts: wind wheel (including tail rudder), generator and tower.