变速恒频双馈风力发电机的H_∞控制

H_∞ Control for Doubly-Fed Wind Power Generators with Variable Speed and Constant Frequency

研究了变速恒频双馈风力发电机的H∞控制,利用其定子磁场定向矢量控制的非线性方程组,应用直接反馈线性化建立了双馈风力发电机的鲁棒控制模型,采用H∞控制理论得出控制律,算法简明,适合工程应用。仿真表明,H∞控制可以改善双馈风力发电机的运行性能,使其具有高精度抗干扰的特性。

The H∞ control for doubly-fed wind power generators with variable speed and constant frequency was studied.On the basis of direct feedback linearization using the equations of field-oriented vector-transformation of the stator,a robust control model for doubly-fed wind power generator was established and its control method was obtained by H∞ control theory.The control algorithm is simple and practicable.Simulation shows that the proposed control method achieves a high static and dynamic performance.