The chattering problem for generalized variable structure control (VSC) systems is investigated and a new control strategy which is nominated as dynamic soft VSC is presented. First of all, the definition of soft VSC and the construction modes of its controller are given. Secondly, the stability of generalized dynamic soft VSC systems is analyzed and the generalized soft VSC is designed. The concrete algorithm on the dynamic soft VSC is given. Soft VSC for generalized systems which is developed for the purpose of intentionally precluding sliding modes and achieving high regulation rates and shortening setting time can decrease the chattering and enhance the dynamic quality of the control systems. Finally, a simulation example illustrates the feasibility and validity of the proposed approach and presents an outlook on its auspicious further development.%针对广义变结构控制系统的抖振问题,给出了新的控制策略:动态软变结构控制.首先给出了软变结构控制定义和控制器构造形式.其次讨论了广义动态软变结构控制系统的稳定性,构造了合适的广义动态软变结构控制器,给出了动态软变结构控制的具体算法.所设计的动态软变结构控制是无滑模的变结构控制,调节精度高,响应速度快,有效地削弱了系统抖振,具有良好的动态品质.最后,用一个仿真实例验证了本文方法的可 .行性和有效性,展示了它进一步的发展前景.
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