Integral sliding mode based optimal composite nonlinear feedback control for a class of systems

Integral sliding mode based optimal composite nonlinear feedback control for a class of systems

Zhou ZHENG;Weijie SUN;Hui CHEN;John T. W. YEOW

【期刊名称】《控制理论与应用（英文版）》 【年(卷),期】2014(000)002

【摘要】This paper presents an optimization method of designing the integral sliding mode (ISM) based composite nonlinear feedback (CNF) controller for a class of low order linear systems with input saturation. The optimal CNF control is first designed as a nominal control to yield high tracking speed and low overshoot. The selection of all the tuning parameters for the CNF control law is turned into a minimization problem and solved automatically by particle swarm optimization (PSO) algorithm. Subsequently, the discontinuous control law is introduced to reject matched disturbances. Then, the optimal ISM-CNF control law is achieved as the sum of the optimal CNF control law and the discontinuous control law. The effectiveness of the optimal ISM-CNF controller is verified by comparing with a step by step designed one. High tracking performance is achieved by applying the optimal ISM-CNF controller to the tracking control of the micromirror. 【总页数】8页(139-146) 【关键词】

【作者】Zhou ZHENG;Weijie SUN;Hui CHEN;John T. W. YEOW