基于MATLAB的电力系统稳定器仿真研究

摘要

A MATLAB based on PSS (Power System Stabilizer) simulation method is introduced in this paper. By using the MATLAB/Simulink software, an automatic excitation system is established. The small disturbance process of the system is also studied whether the PSS is used or not. Simulation results are also provided to demonstrate that the low-frequency oscillation can be avoided when the generator excitation voltage adjusting and PSS are both used. The reason is that the system can resume balance quickly from the small disturbance process in this situation.%　　在介绍基于MATLAB的电力系统稳定器(PSS)仿真方法的基础上,研究了应用MATLAB/Simulink软件建立相应的励磁自动控制系统,并对该系统在采用PSS前后受到小扰动时的情形进行了模拟仿真。仿真结果表明,在发电机按端电压调节励磁的同时如采用PSS,系统受到小扰动后能迅速恢复平衡,从而避免低频振荡现象的产生。