基于全程滑模的有限时间滑模变结构控制  

Sliding Mode Variable Structure Control of Finite-Time Based on Global Sliding Mode

作　　者：刘云峰[1] 缪栋[1] 刘华峰[2] 梁树晖[3] 

机构地区：[1]第二炮兵工程学院,陕西西安710025 [2]太原理工大学机电所,山西太原030024 [3]第二炮兵装备研究院,北京100085

出　　处：《上海航天》2008年第3期11-15,共5页Aerospace Shanghai

摘　　要：提出了一种适于多输入多输出(MIMO)非线性系统的全程滑模变结构控制。基于全程滑模控制,采用指数型快速终端滑模趋近律设计全程滑模控制器,并对控制率作平滑改进。方法消除了滑模控制的到达阶段,系统跟踪误差始终保持在滑模面上,并能在有限时间内趋近于原点的邻域内。一类三阶非线性系统仿真结果表明:该控制策略可行且有效。A global sliding mode control that was suitable to nonlinear system with multiinput multi-out was put forward in this paper.Exponential fast terminal sliding mode reaching law was applied to design of global sliding mode controller based on global sliding mode control,and the controller law was smoothed.Reaching phase of sliding mode control could be eliminated by the scheme,and the tracking error would be staied on the sliding mode surface and tended to neighborhood of zero in the finite time.The simulatio...

关 键 词：全程滑模 滑模变结构控制 非线性系统 指数型快速终端滑模 到达阶段 跟踪误差 有限时间 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]