风力发电机组变桨距控制器的研究

Blade Pitch Control of Wind Turbine Generator Unit based on Fuzzy Adaptive PID

针对风力发电机组在高风速下运行时输出功率不稳定的问题,提出了模糊自适应PID变桨距控制器的设计方案。以机组实际输出功率值与额定功率值的偏差及其偏差的变化率作为控制器的输入变量,确定模糊语言和隶属函数,基于Matlab/Simulink上对整个系统进行仿真。仿真结果表明模糊自适应PID控制器具有很好的控制精度和鲁棒性。

The output power of wind turbine generator unit is sometimes unstable under high speed wind condition.Thus,a blade pitch control scheme is proposed based on fuzzy adaptive PID.The deviation and variation rate of the actual output power from the rated power are taken as the input parameters of the controller to determine the fuzzy language and the membership function.The whole system is then simulated in Matlab/Simulink.The results show that the fuzzy adaptive PID controller is of satisfactory control accuracy and robustness.