Active Stall Wind Turbine Power Optimization And Load Control Strategy Study

In this paper, the author deduces the air dynamic and torque transmission system model for the 1.3 MW active stall wind turbine, then founds the control model under the SIMULINK circumstance. And does the output power simulation based on the certain wind speeds. Then confirms the coefficients Ki and Kp. He finds the pitch range after calculated the three important parameters through the Bladed for Windows software, then presents an optimized control strategy that regulate the pitch angle in terms of the wind speed. It must control the output power because the variational output power brings the variational loads. He confirms and optimizes the control strategy that the output power is the control target, the output power is divided into three parts. The controller captures the maximal energy when the wind speed is below the rated speed. Near the rated speed and over the rated speed, the controller will control the output power to decrease the loads. The control strategy has been validated by simulations in the BLADED software.