直驱式永磁同步风力发电机的H∞控制

摘要

研究了直驱式永磁同步风力发电机的H∞控制,应用直接反馈线性化,建立了鲁棒控制模型,采用H∞控制理论得出控制律,算法简明实用.仿真表明,H∞控制可以保证在风速变化、系统参数不确定和外部干扰的情况下,直驱式永磁风力同步发电机仍能安全可靠地获取最大风能,向电网输送恒频恒压的电能.%In this paper the H∞ control for the directly driven permanent magnet generator is studied. On the basis of direct feedback linearization, a robust control model for the directly driven permanent magnet generator is established. The controlled method is obtained by H∞ control theory. The control algorithm is simple and practicable. Simulations show that the proposed controller guarantees the wind power system to achieve the maximal absorption of wind power in the secure and stable operation and to output the electric power with constant frequency and constant voltage.