Not all winds can generate electricity. When it comes to wind power generation unit selection, the turbine will be selected based on the local wind resources. Currently, the commonly used units in the world are 1.5MW/unit, 2MW/unit, 3MW/unit and 5MW each. Whether to generate electricity is determined based on the cut-in and cut-out wind speeds of the wind turbine. For example, the current common 2MW wind turbine has a cut-in wind speed of 3 meters, which means that the wind turbine starts to generate power when the wind speed reaches 3 meters, but the wind speed of 3 meters will definitely not reach full power. At present, domestic units basically require a wind speed of about 11 meters to reach full power. Cutting out the wind speed to 25 meters/second means that when the wind speed reaches 25 meters/second, the wind turbine hub will automatically brake and feather the propeller to stop generating electricity to avoid overspeeding.
Provincial Department of Housing and Urban-Rural Development. According to the query of the Department of Housing and Urban-Rural Development, the third-level qualification is handled by the prefecture-level municipal construction committee, the second-level qualification is handled by the provincial housing and urban-rural development department, the first-level qualification is handled by the provincial housing and urban-rural development department and reported to the Ministry of Housing and Urban-Rural Development for filing, and the second-level qualification for wind power generation can be undertaken The construction of power generation projects with a single unit capacity of less than 200,000 kilowatts, power transmission lines of less than 220 kV and substation projects of the same voltage level.