采用现代控制理论可以设计满足给定性能泛函的最优控制系统,然而确定性能泛函往往在于主观上的侧重,缺乏工程上的实际意义。本文将工程上对系统动态指标的要求与性能泛函相结合,即通过系统仿真来选取满足动态指标的最优控制,具有工程实用价值。这种方法已在电液控制系统中实施。设计最优控制系统已知被控系统的状态方程是 The modern control theory can be used to design the optimal control system that satisfies the given functional function. However, the determination of the functional general function is often subjective and lacks practical significance in engineering. In this paper, the engineering dynamic system requirements and functional indicators of the combination of functional, that is, through the system simulation to select the optimal control to meet the dynamic indicators, with engineering practical value. This method has been implemented in electrohydraulic control systems. Designing the Optimal Control System It is known that the state equation of the controlled system is