l 2022年6月7日（周二） Zoom：893 9386 6593 密码：708008
报告嘉宾：Prof. Changyun Wen, Nanyang Technological University
Zoom：893 9386 6593 密码：708008
报告题目：Adaptive Backstepping Control of Nonlinear Uncertain Systems with Quantized States
In this talk, how to stabilize a class of uncertain nonlinear systems with quantized states is presented. All states in the system are quantized by a static bounded quantizer, including uniform quantizer, hysteresis-uniform quantizer and logarithmic uniform quantizer as examples. An adaptive backstepping-based control algorithm which can handle discontinuity resulted from the state quantization is developed. Besides showing global boundedness of all the signals in the closed loop system, a stabilization error performance is also established and can be improved by appropriately adjusting design parameters.
Changyun Wen received the B.Eng. degree from Xi'an Jiaotong University, China, in 1983 and the Ph.D. degree from the University of Newcastle, Australia in 1990. From August 1989 to August 1991, he was a Postdoctoral Fellow at University of Adelaide, Australia. Since August 1991, he has been with Nanyang Technological University, Singapore, where he is currently a Full Professor. His main research activities are in the areas of control systems and applications, cyber-physical systems, smart grids, complex systems and networks. Some of his publications in these areas are available in https://publons.com/researcher/2816818/changyun-wen/publications/.
Prof Wen is a Fellow of IEEE, was a member of IEEE Fellow Committee from January 2011 to December 2013 and a Distinguished Lecturer of IEEE Control Systems Society from 2010 to 2013. He is currently the co-Editor-in-Chief of IEEE Transactions on Industrial Electronics, Associate Editor of Automatica (from Feb 2006) and Executive Editor-in-Chief of Journal of Control and Decision. He also served as an Associate Editor of IEEE Transactions on Automatic Control from 2000 to 2002, IEEE Transactions on Industrial Electronics from 2013 to 2020 and IEEE Control Systems Magazine from 2009 to2019. He has been actively involved in organizing international conferences playing the roles of General Chair (including the General Chair of IECON 2020 and IECON 2023), TPC Chair (e.g. the TPC Chair of Chinese Control and Decision Conference since 2008) ect.
He was the recipient of a number of awards, including the Prestigious Engineering Achievement Award from the Institution of Engineers, Singapore in 2005, and the Best Paper Award of IEEE Transactions on Industrial Electronics in 2017.