Design of multiple anti-windup loops for multiple activations  

作　　者：WU XiongJun 1,2 & LIN Zongli 3,1 1 Department of Automation,Shanghai Jiao Tong University,and Key Laboratory of System Control and Information Processing,Ministry of Education of China,Shanghai 200240,China 2 No.802 Institute of Shanghai Academy of Space Flight Technology,the Eighth Academy of China Aerospace Science and Technology Corporation,Shanghai 200090,China 3 Charles L.Brown Department of Electrical and Computer Engineering,University of Virginia,P.O.Box 400743,Charlottesville,VA 22904-4743,USA 

出　　处：《Science China(Information Sciences)》2012年第9期1925-1934,共10页中国科学（信息科学）（英文版）

摘　　要：This paper considers anti-windup design for linear systems subject to actuator saturation. Three anti-windup gains are designed for activations immediately at the occurrence actuator saturation, after the saturation has reached a certain level and in anticipation of the occurrence of saturation, respectively. The design is based on the minimization of L：2 gain from the disturbance to the controlled output of the resulting closed-loop system. Traditional anti-windup scheme involves a single anti-windup loop for immediate activation. A recent innovation is to design a single anti-windup loop for delayed or anticipatory activation, as well as to design two anti-windup gains, one for immediate activation and one for delayed activation. Our design of three anti-windup gains for three different activations is shown through simulation to lead to significant further performance improvement over the previous activation schemes.This paper considers anti-windup design for linear systems subject to actuator saturation. Three anti-windup gains are designed for activations immediately at the occurrence actuator saturation, after the saturation has reached a certain level and in anticipation of the occurrence of saturation, respectively. The design is based on the minimization of L：2 gain from the disturbance to the controlled output of the resulting closed-loop system. Traditional anti-windup scheme involves a single anti-windup loop for immediate activation. A recent innovation is to design a single anti-windup loop for delayed or anticipatory activation, as well as to design two anti-windup gains, one for immediate activation and one for delayed activation. Our design of three anti-windup gains for three different activations is shown through simulation to lead to significant further performance improvement over the previous activation schemes.

关 键 词：actuator saturation ANTI-WINDUP anticipatory activation delayed activation /22 gain nonlinear control 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程] Q26[自动化与计算机技术—控制科学与工程]