The working wind speed range specified for wind turbines is generally

3 ~ 25 m/s. Because it is necessary to protect the safety of wind turbines and provide appropriate customs, the specified operating speed range of wind turbines is generally 3-25m/s. The general start-up wind speed of wind turbines is 3 to 4 m/s, and the cut-off wind speed, that is, the wind speed when stopping in strong winds, is 19 to 25 m/s. The so-called standard time refers to the full wind speed of the wind turbine, which is generally 11 to 15 m/s. If it can reach 2,000 standard hours per year, it is an area with rich wind resources.