【摘要】 在滑模控制理论中 ,减少控制信号抖振一直是研究的热点问题之一。最常用的使用边界层控制的方法会因边界层宽度的不同选择产生不同的结果 ,或者减少控制信号的抖振 ,或者降低控制精度。本文提出了基于状态边界层的滑模控制器的设计构想 ,即用状态的模来调整边界层的宽度。仿真结果表明 ,这种方法能有效地消除控制信号的抖振 ,同时兼顾了控制精度。更多还原

【Abstract】 The use of a boundary layer in sliding-mode control has been a common technique to reduce chattering of the control signal.However,different choices of the boundary layer width lead to conflicting effects,for instance,a large/small boundary layer width can more/less effectively alleviate the chattering phenomenon, or lead to less/more accurate control results.So,a design method of sliding mode controller is proposed based on state boundary layer,that is to adjust the width of boundary layer by state mode for an uncertain linear system.The simulation result showed that the proposed state-dependent boundary layer design can effectively eliminate chattering of signal meanwhile,ensure the control accuracy.更多还原