基于直接反馈线性化的非线性励磁控制器

Nonlinear Excitation Controller based on the Dired Feedback Linearization

本文把直接反馈线性化理论应用于同步电机励磁控制器的设计中，得出了实用化的非线性励磁控制规律，并用解析的方法证明了直接反馈线性化方法和微分几何法可以得出完全相同的非线性励磁控制规律。在此基础上，本文提出了一种改进的非线性励磁控制规律，这种改进的励磁控制规律减少了所要量测的信号，而且使得信号的量测更加方便。仿真结果和动模试验表明了这种改进的非线性励磁控制规律的正确性和优越性。

In this paper,a new design of the excitation controller of synchronous generators is presented. Based on the direct feedback linearization theory a practical nonlinear excitation control law is derived and its form is the same as that based on differential geometry theory. On this basis,an improved nonlinear excitation control law is proposed,which can make the controller requiring less measurement signals be obtained more conveniently. The correctness and the superiority of the improved nonlinear excitation control law have been verified by the digital simulation and micro-Power-system tests.