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Control Systems with Actuator Saturation: Anti-windup Design

Date: Wednesday March 23, 2011

Speaker: Zongli Lin, Professor of Electrical and Computer Engineering, Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA - Click Here for the speaker's bio.

Subject: "Control Systems with Actuator Saturation: Anti-windup Design

View the Presentation - 1.02 MB PDF

Abstract:

Every physical actuator is subject to saturation. It has been well recognized that, when the actuator saturates, the performance of the closed-loop system designed without considering actuator saturation may seriously deteriorate. In extreme cases, the system stability may even be lost. This talk will illustrate how actuator saturation adversely affects the behavior of a control system and explain how such adverse effects of actuator saturation can be mitigated. In particular, our recent work on the design of an anticipatory anti-windup design is discussed. Anti-windup is a popular way to mitigate the adverse effects of actuator saturation.

Biographical Information:

Zongli LinZongli Lin is a Professor of Electrical and Computer Engineering at University of Virginia. Professor Lin received his B.S. degree in mathematics and computer science from Xiamen University, Xiamen, China, in 1983, his Master of Engineering degree in automatic control from Chinese Academy of Space Technology, Beijing, China, in 1989, and his Ph.D. degree in electrical and computer engineering from Washington State University, Pullman, Washington, in 1994. His current research interests include nonlinear control, robust control, and control of magnetic suspension systems. In these areas, he has published three books and some 300 papers, over 160 of which are in archival journals. He was an Associate Editor of IEEE Transactions on Automatic Control (2001-2003) and IEEE/ASME Transactions on Mechatronics (2006-2009) and has served on the operating committees and program committees of several conferences. He was an elected member of the Board of Governors of the IEEE Control Systems Society (2008-2010). He currently serves on the editorial boards of several journals and book series, including Automatica, Systems & Control Letters, Science China: Information Science, IEEE Control Systems Magazine, and Science Press Book Series on Systems and Control. He is a Fellow of the IEEE.

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