首先建立了单机—无穷大系统中发电机组的状态空间模型,提出了基于MATLAB 设计最优励磁控制器的方法。动态仿真分析表明,该最优励磁控制系统能够有效地增加系统的阻尼,提高系统的稳定性,并具有较好的鲁棒性。 [关键词] 电力系统;最优励磁控制器;状态方程;动态仿真 Abstract: Firstly, state-space model of a generator system in a Single Machine Infinite Bus (SMIB) System is developed in this paper, and the means to design an optimal excitation controller based on MATLAB is presented. By the dynamic simulation analysis, this optimal excitation system can increase the system damping and improve system stability with very good robustness. Key Words: power system; optimal excitation controller; state-space equation; dynamic simulation