学术报告第201307期

报告题目：Robust  Sampled-Data Control of Nonlinear Systems

报 告 人： 陈智勇  博士（澳大利亚 纽卡斯尔大学 高级讲师、华中科大 客座教授）

报告时间：2013年7月1  日下午3：00

报告地点：南一楼中311会议室

邀 请 方：“多谱信息处理技术”国家级重点实验室

Abstract:

Robust continuous-time control for nonlinear  systems has been extensively studied over the past decades. A variety of robust  controllers based on the high gain domination approach and the back stepping  technique have been developed for a wide class of inter-connected systems.  Nevertheless, it is a challenging task to digitally implement these controllers  in many practical applications such as networked control systems where sampled  data with possible delay are available for feedback design. A fundamental  difficulty lies in the fact that high robustness requires high control gains  which are however constrained by sampling bandwidth. In this paper, a general  framework based on input-to-state stability analysis is proposed to reveal the  quantitative tradeoff between robustness and sampling bandwidth. In particular,  two classes of sophisticated nonlinear systems of the output feedback and the  lower triangular forms are investigated within the framework.

Biography:

 Zhiyong Chen received the B.E. degree from the  University of  Science and Technology of  China, and the M.Phil. and Ph.D. degrees from the Chinese University of Hong  Kong, in 2000, 2002, and 2005 respectively. He worked as a Research  Associate at the University of Virginia during 2005-2006. He is now a  Senior Lecturer at the University of Newcastle, Australia. His research interests include nonlinear  systems and control, biological systems, and multi-agent systems. He is an  Associate Editor of IEEE Transactions on Automatic Control and an Associate  Editor of Systems and Control Letters. He has published 11 IEEE Transactions on  Automatic Control papers (4 regular), 5 other IEEE Transactions papers (3  regular), and 7 Automatica papers (1 regular). He has won the National Natural Scientific  Award of China (2/4) in 2010.