约束最优控制的变结构实现

Variable Structure Implementation for Control Constrained Optimal Control System

通过一个应用实例 ,分析了控制受约束的最优控制最优解的理想特性和以其作为控制策略的局限性 ;然后运用变结构控制方法 ,对控制受约束的线性系统最优控制策略进行改造 ,使之在保持最优控制主体性能的同时 ,维持足够的稳定性和良好的鲁棒性 具体作法是在滑模趋近段采取沿边界控制 (最优控制策略 ) ,而在滑模运动段采取边界内稳定控制 (极点配置策略 ) 并对受约束控制的具体选取方法及滑动模态的可达条件均作了陈述或推导

Taking an application example,the ideal properties and limitations of a control constrained optimal control system are analyzed;then the optimal control of control constrained system is transformed through sliding mode variable structure control method so as to increase the system's stability and robustness. At accessing sliding mode stage the optimal control method is used;and at sliding mode stage the poles adjusting method is used. All of these methods and the sliding mode accessable condition have been deduced. Simulation results are delivered at last.