分频风力发电系统最优功率输出控制研究

Research on Optimal Power Output Control of Fractional Frequency Wind Power Generation System

本文研究了分频风力发电系统最优功率输出控制策略。在异步风力发电机中引进了转子磁链定向矢量控制技术,对异步风力发电机电磁转矩进行控制,实现对风力发电机组转子转速的调节以及对其风能利用系数的控制,并构建了分频异步风力发电系统模型。经仿真试验证实,自然风速波动下实施最优输出功率控制,能够降低风力发现机组机械应力,减少输出功率波动。

The optimal power output control strategy of fractional frequency wind power generation system was studied.The rotor flux oriented vector control technology was introduced in asynchronous wind turbine.The electromagnetic torque of the asynchronous wind-driven generator was controlled.The speed regulation of wind turbine rotor and control of the wind energy utilization coefficient were implemented.The fractional frequency model of asynchronous wind power system was built.Simulation experiments confirmed that implemented the optimal power output control under the natural wind speed fluctuation could reduce the mechanical stress of the wind turbine and the output power fluctuations.