Professor Changyun Wen报告会---Adaptive Actuator Failure Compensation Control of Uncertain Nonlinear ..
IEEE CONTROL SYSTEMS SOCIETY DISTINGUISHED LECTURE
报告人：Professor Changyun Wen
报告时间：2011年6月2日（周四）下午2:30 – 3:30
报告地点：信息学馆 301
报告题目：Adaptive Actuator Failure Compensation Control of Uncertain Nonlinear Systems with Guaranteed Transient Performance
报告邀请人：信息学院控制理论与导航技术研究所 杨光红教授
报告简介：
In order to accommodate actuator failures which are uncertain in time, pattern and value, two adaptive backstepping control schemes for parametric strict feedback systems are presented. Firstly a basic design scheme on the basis of existing approaches is considered. It is analyzed that, when actuator failures occur, transient performance of the adaptive system cannot be adjusted through changing controller design parameters. Then, based on a prescribed performance bound (PPB) which characterizes the convergence rate and maximum overshoot of the tracking error, a new controller design scheme is given. It is shown that the tracking error satisfies the prescribed performance bound all the time. Simulation studies also verify the established theoretical results that the PPB based scheme can improve transient performance compared with the basic scheme, while both ensure stability and asymptotic tracking with zero steady state error in the presence of uncertain actuator failures.
主讲人简介：
Changyun Wen received the B.Eng. degree from Xi’an Jiaotong University, China, in July 1983 and the Ph.D. degree from the University of Newcastle, Australia, in February 1990. From August 1989 to August 1991, he was a Postdoctoral Fellow with the University of Adelaide, Australia. Since August 1991, he has been with the School of Electrical and Electronic Engineering, Nanyang Technological University, where he is currently a Professor. His main research activities are in the areas of adaptive control, development of battery management systems, ejector based air-conditioning systems, switching and impulsive systems, system identification, control and synchronization of chaotic systems, and biomedical signal processing.
Professor Wen is an Associate Editor of a number of journals including AUTOMATICA and the IEEE CONTROL SYSTEMS MAGAZINE. He also served the IEEE TRANSACTIONS ON AUTOMATIC CONTROL as an Associate Editor from January 2000 to December 2002. He has been actively involved in organizing international conferences playing the roles of General Chair, General Co-Chair, Technical Program Committee Chair, Program Committee Member, General Advisor, Publicity Chair, and so on. He received the IES Prestigious Engineering Achievement Award 2005 from the Institution of Engineers, Singapore (IES) in 2005. He is a Fellow of IEEE, a Member of the 2011 IEEE Fellow Committee and a Distinguished Lecturer of IEEE Control Systems Society.
