Title :
Anti-windup coordination strategy for multivariable PID control
Author :
Morilla, Fernando ; Garrido, Juan ; Vázquez, Francisco
Author_Institution :
Dipt. de Inf. y Autom., UNED, Madrid, Spain
Abstract :
This paper presents a coordination strategy of anti-windup mechanisms based on conditioning by ¿input scaling¿. It is specially designed to be used in distributed control systems with PID controllers. The study considers three cases of TITO control systems: decentralized control, centralized control with decoupler and centralized control with four PID. In them, the allowable region in the control signal space is transformed into an allowable region in the signal space of PID controllers. In this way, PID controllers are able to keep their integral term at a proper value when actuator saturates. The coordination strategy assures that the control signals are always inside these allowable control regions. The proposed methodology is applied to two representative processes.
Keywords :
control system synthesis; decentralised control; distributed control; multivariable control systems; three-term control; TITO control systems; anti-windup coordination strategy; decentralized control; distributed control systems; input scaling; multivariable PID control; Actuators; Centralized control; Control systems; Distributed control; Frequency; Integral equations; MIMO; Signal processing; Three-term control; Windup;
Conference_Titel :
Emerging Technologies & Factory Automation, 2009. ETFA 2009. IEEE Conference on
Conference_Location :
Mallorca
Print_ISBN :
978-1-4244-2727-7
Electronic_ISBN :
1946-0759
DOI :
10.1109/ETFA.2009.5347074