15th Triennial World Congress of the International Federation of Automatic Control
  Barcelona, 21–26 July 2002 
AN H∞ DYNAMIC ANTI-WINDUP SCHEME FOR INPUT-CONSTRAINED LINEAR SYSTEMS
Seong-Sik Yoon* Kwang-Youn Kim*
Tae-Woong Yoon*,1 Jong-Koo Park**
* School of Electrical Engineering, Korea University, Seoul
136-701, Korea
** School of Electrical & Computer Engineering,
Sungkyunkwan University, Suwon 440-746, Korea
This paper proposes a dynamic compensation scheme for input-constrained linear systems to cope with the windup phenomenon. Given a linear controller for such a linear system designed without considering its input constraints, an additional dynamic compensator is proposed to account for the constraints. This dynamic anti-windup scheme is based on H∞ optimization, and some stability properties of the resulting closed-loop system are given.
Keywords: Saturation, Constraints, Windup, H∞ optimization, Compensation
1Corresponding Author: School of Electrical Engineering, Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, Seoul 136-701, Korea. Tel.: +82-2-3290-3240. Fax: +82-2-928-8909.
E-mail: twy@cello.korea.ac.kr
Session slot T-Mo-M16: Control of Systems with Input Constraints/Area code 2a : Control Design