基于电阻耦合法的发电机励磁系统参数辨识

提出了一种基于电阻的信号耦合法，可将伪随机信号或阶跃信号耦合到自动电压调节器（AVR）的机端电压反馈信号中，用于解决目前某些发电机励磁控制系统时没有预留测试信号输入端子而难以进行励磁系统参数辨识试验的问题。该方法已用于某实际385MW同步发电机励磁系统现场测试，并用遗传算法进行了参数辨识。校验结果证明了该方法的有效性。

Resistance Based Signal Coupling Method for Parameter Identification of Synchronous Generator Excitation System

Resistance based signal coupling method is proposed in the paper for parameter identification of synchronous generator excitation system. By using the method, the normally used test signals such as PRBS and step-up signal can he coupled into the feedback input signal of excitation system. It is designed to solve the parameter identification for generator excitation system without test signal input end. The method has been applied to the parameter identification of a 385 MW synchronous generator excitation system, and the parameters of the system model have been obtained by using genetic algorithm. Simulation results show the efficiency of the method.