I should be asking what kind of wind turbine it is. There are mainly doubly-fed wind turbines and direct-drive wind turbines. The former requires a gearbox to increase the speed. When the generator speed reaches a certain level, it can be connected to the grid to generate electricity. The latter does not require a gearbox and mainly relies on multiple poles. Logarithmic realization of the process of generating electricity at low speed!
The specified operating wind speed range of wind turbines is generally
For wind power generation, the concept of how many levels of wind power should be used is too rough. Due to different generator capacities, the requirements for wind speed are also somewhat different. However, generally if the wind speed exceeds 3m/s, the wind turbine can generate electricity. However, wind power generation does not depend on how high the local wind speed can reach, but on how long the local wind farm that generates electricity for this wind turbine can operate per year. Based on the current wind power subsidy price set by the state, if the power generation time is less than 2,000 hours that year, there will be no profit.
3～25m/s. Because it is necessary to protect the safety of wind turbines and provide appropriate customs, the specified operating wind speed range of wind turbines is generally 3 to 25m/s. The general starting wind speed of wind turbines is 3-4m/s, and the cut-out wind speed, that is, the wind speed when shutting down in strong winds is 19-25m/s. The so-called standard hour refers to the full wind generated by the wind turbine, which is generally 11-15m/s. If it can reach 2,000 standard hours a year, it is an area with rich wind resources.