Fuzzy anti-windup design
for linear systems with input saturation
H. Ayad1*, S. Doubabi1*, A. Hamzaoui2
1Université Cadi Ayyad, Faculté des Sciences et Techniques Guéliz,
Laboratoire d’Automatique et Informatique Industrielle,
Avenue Abdelkrim Elkhattabi, B.P 549, Marrakech, Morocco
2Université de Reims Champagne Ardenne,
Laboratoire d’Automatique et Micro-électronique, France
* Corresponding author. E-mail:firstname.lastname@example.org
Received : 8 May 2004; revised version accepted : 14 January 2005
In this paper, we test fuzzy logic-based compensation method for PID controller and conditioned Technique and compare their performance. As this compensation aims to diminish the effect of windup, it is referred to as anti-windup (AW). We consider two cases: set point tracking and disturbance rejection. For set point tracking and disturbance rejection, the fuzzy compensator shows better performance than the conditioning technique. The presented control scheme is composed of a fuzzy logic based compensator and a conventional PID controller.
Keywords: Anti-Windup; Compensator; Saturation; Fuzzy; Disturbance.