Adaptive PI control with robust variable structure anti-windup strategy for systems with rate-limited actuators: Application to compression systems. (March 2020)

• Record Type: Journal Article
• Authors: Eldigair, Yousif; Garelli, Fabricio; Kunusch, Cristian; Ocampo-Martinez, Carlos
• Is Part Of: Control engineering practice. Volume 96(2020)
• Publication Date: 2020-03
• Subjects: Sliding mode anti-windup -- Relay feedback test -- Air compressor -- Rate-limiter; Automatic control -- Periodicals; 629.89
• DOI: 10.1016/j.conengprac.2019.104282
• Languages: English
• ISSNs: 0967-0661

Abstract

Abstract: In this paper, an adaptive proportional–integral (PI) control strategy for nonlinear systems with constrained actuators is discussed. In particular, a variable-structure anti-windup strategy that can be retrofitted onto different control structures is proposed and validated. Both the developed controller and anti-windup method are attuned to an automotive industrial control application: the control of air mass flow-rate and pressure in a fuel cell system using a high speed turbo-compressor and an electromechanical valve. Both the compressor and valve are rate-limited. The results from experimental tests agree with the simulations obtained and showing the effectiveness of the proposed approach by evidencing the fast control dynamics and the proper and desired closed-loop performance of the scheme without windup phenomena.