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简要介绍了无源系统理论及无源最优控制方法。针对具有励磁控制的单机无穷大输电系统 ,求出其存储函数 ,并根据输出反馈无源定理 ,构造了系统关于一类二次性能指标下的非线性最优控制规律。仿真结果证明了该控制器的有效性。由于在控制器设计过程中未用到任何线性化方法 ,因而能够完整地保留系统的非线性特性。因此 ,文中所用的无源系统理论和无源化控制方法是实现电力系统非线性最优控制的一条新的途径
Passive system theory and passive optimal control method are briefly introduced. Aiming at the single machine infinite transmission system with excitation control, its storage function is obtained. According to the output feedback passive theory, the nonlinear optimal control law of a class of quadratic performance index is constructed. Simulation results show the effectiveness of this controller. Due to the fact that no linearization method is used in the design of the controller, the non-linearity of the system can be completely preserved. Therefore, the passive system theory and passive control method used in this paper is a new way to realize nonlinear optimal control of power system