Observer-Based Nonsingular Terminal Sliding Mode Controller Design

作     者：Xie Xiaozhu Department of Information Engineering, Academy of Armored Force Engineering, Beijing 100072 

会议名称：《第24届中国控制与决策会议》

会议日期：2012年

学科分类：0711[理学-系统科学] 07[理学] 08[工学] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 071102[理学-系统分析与集成] 081103[工学-系统工程] 

关 键 词：Disturbance observer Terminal sliding mode Uncertainty Nonsingular 

摘      要：This is the paper style requirement for the Chinese Control and Decision Conference. In this paper, a new observer-based nonsingular terminal sliding mode controller is proposed for a spin missile system with inertia uncertainty and external disturbance. By designing the nonlinear disturbance observer to observe the uncertainties and disturbance of the missile system, the chattering of nonsingular terminal sliding mode control is reduced. This controller can make the states not only reach the manifold in finite time, but also obtain a faster convergence and a better tracking precision. The global stability of the closed loop system is guaranteed and the singularity problem associated with conventional terminal sliding mode is avoided. The simulations verified the effectiveness of the proposed method in the paper.