报告题目: | Robust Sampled-Date Control of Nonlinear Systems |
报 告 人: | Zhiyong Chen 副教授 |
The University of Newcastle, Australia | |
报告时间: | 12月27日(周五)上午10:30-11:30 |
报告地点: | 九龙湖数学系第一报告厅 |
相关介绍: | 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 backstepping 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 date with possible delays 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 talk, 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: Dr. Zhiyong Chen received the B.S. degree from the University of Science and Technology of China, and the M.S. 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 an Associate Professor at the University of Newcastle. He is an Associate Editor for several journals including IEEE Transactions on Automatic Control and Systems & Control Letters. His research interests include nonlinear systems and control, networked systems, and biological systems. |