1results about "Rotational speed control" patented technology

The application provides a kind of gust-oriented wind turbine unit overspeed prevention control method, device and medium, belong to wind turbine unit control field.The method comprises: obtaining real-time wind speed data and generator speed data;According to real-time wind speed data, determine whether to enter the gust mode of wind turbine unit;In the case of entering gust mode, adjust the minimum pitch angle of wind turbine unit operation to be the minimum pitch angle of gust mode operation;According to generator speed data, calculate generator speed acceleration;According to generator speed data and generator speed acceleration, determine whether to enter acceleration overspeed prevention control strategy;In the case of determining to enter acceleration overspeed prevention control strategy, superimpose preset pitch rate on normal pitch rate.In the gust mode, the pitch angle in the operation of wind turbine unit is raised, so that the angle of attack margin of blade can be kept in a safe range, and after entering the acceleration overspeed prevention control strategy, superimpose preset pitch rate on normal pitch rate.