摘要
研究多输入不确定系统的模糊滑模控制问题,利用动态补偿器和不等式技巧设计了滑动模态,解决了非匹配不确定性的抑制问题,并给出了保守性较小的滑模稳定性条件.为克服滑模的抖振,提出了用模糊数模型和双二次函数插值构造模糊滑模控制律的方法.仿真结果表明,该方法对于参数摄动和外部扰动具有良好的鲁棒性.
The fuzzy sliding mode control for non-matching uncertain systems is studied. By applying dynamic compensator and inequality technique, the sliding mode is designed and the problem of non-matching uncertainty restraint is solved. A stability condition of sliding mode with less conservative is obtained. In order to overcome chatter phenomenon, the fuzzy number model and double quadratic function interpolation algorithm are combined to design a fuzzy sliding mode control law. Simulation results show that this method has stronger robustness against the variation of parameters and disturbance.
出处
《控制与决策》
EI
CSCD
北大核心
2004年第6期655-658,662,共5页
Control and Decision
关键词
模糊控制
滑动模态
动态补偿器
鲁棒性
Fuzzy control
Robustness (control systems)
Uncertain systems
