风力发电系统的回路成形鲁棒控制器设计

Loop Forming Robust Controller Design for Wind Power Generation System

针对风力发电系统中风速变化的随机性、风机力矩的扰动以及高频未建模的不确定性,利用H∞回路成形算法对成形后的系统设计鲁棒控制器,建立了风力发电机组的局部线性化模型并进行仿真计算。仿真结果表明,运用Hankel奇异值降阶来设计降阶的控制器能够很好地替代原控制器。

Aiming at the randomness of the wind speed change, the wind turbine torque disturbance, and high-frequency unmodeled uncertainties in wind power generation system, robust controller after forming is designed based on the loop-shaping algorithm on system, and the local linear model for the wind energy conversion system is established. Using Hankel singular value reduction to design a reduced-order controller can be a good replacement for the original controller.