非匹配时变不确定性时滞系统的Terminal滑模控制  

Terminal sliding mode control for time-delay system with unmatched time-varying uncertainties

作　　者：刘根旺[1] 李志强[1] 

机构地区：[1]电子科技大学空天科学技术研究院,四川成都610054

出　　处：《系统工程与电子技术》2009年第5期1180-1183,共4页Systems Engineering and Electronics

摘　　要：针对具有非匹配时变不确定性和时滞的线性系统,提出了快速terminal滑模控制策略。采用非线性滑动平面的设计方法,使得系统状态可在有限时间内收敛至平衡点。滑动平面系数满足扩展匹配条件时,设计的terminal控制器确保了在滑动平面上系统对于非匹配时变不确定性和时滞具有不变性,并保证了滑动平面的到达和闭环系统的稳定。仿真结果验证了控制策略的有效性。Fast terminal sliding mode control strategy is proposed for time delay linear system with un matched time-varying uncertainties. The terminal sliding mode uses nonlinear sliding surface to ensure the system reach the equilibrium point in finite time. When the extended sliding coefficient matching condition is saris fied, terminal sliding mode controller can have the system on the sliding surface be invariant to the unmatched time varying uncertainties and time delay elements. It also guarantees the reaching mode of the sliding surface and the stability of the close-loop system. Simulation results are used to illustrate the effectiveness of the pres ented terminal sliding mode control strategy.

关 键 词：非匹配 不确定性 时滞 TERMINAL滑模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]