新加坡国立大学王庆国教授学术报告
作者：sxl 发布日期：2010-06-27 浏览次数：

 
标    题：Stability Margins of Multivariable Feedback Systems
 
主 讲 人：Prof. Qing-Guo Wang
时    间：6月25日 上午10点30分
地    点：广知C楼511会议室
 
 
报告摘要：Stability robustness is a key issue in feedback control systems, and is often measured by gain and phase margins. The controller design based on gain and phase margin specifications is common and is widely used in practice. The SISO gain margin is one of most popular tools for control system analysis and design due to its well-postedness and easy computation. However, MIMO gain margin is defficult to obtain due to the interactions between the control loops. In this presentation, the independent loop gain margins will be introduced for multivariable feedback systems as the allowed perturbation ranges of gains for each loop, such that the closed-loop system remains stable. The so-defined loop gain margins enable and facilitate independent loop tuning for MIMO control systems, which dominates process control practice. In addition, A time domain method will also be developed for computation of MIMO loop gain margins of determining the parameter ranges of multi-loop PID controllers which stabilize a given process.
 
王庆国教授简介：Prof. Wang is currently a Full Professor with the Department of Electrical and Computer Engineering of the 
National University of Singapore. He has received many awards including Germany's Alexander von Humboldt Research 
Fellowship, the Young Scientist Award of the Chinese Association of Science and Technology, etc. He has published about 
300 technical papers, of which 190  are in international journals, and received about 2000 cross citations. He authored or 
co-authored six books entitled. He is currently the Editor-in-Chief of “International Journal of Process System Engineering”, 
an Associate Editor of the ISA Transactions (USA), a member of the Editorial Advisory Board of Recent Patents in 
Engineering, and a member of the Editorial Board, The Open Chemical Engineering Journal, Journal of Neural Computing 
Systems, The Open Electrical and Electronic Engineering Journal, and The Open Nanoscience Journal