Title: IMC-based anti-windup controller for real-time hot air flow and level control loop

Authors: Ujjwal Manikya Nath; Chanchal Dey; Rajani K. Mudi

Addresses: Department of Instrumentation Engineering, Jorhat Engineering College, Jorhat, 785007, Assam, India ' Instrumentation Engineering, Department of Applied Physics, University of Calcutta, 92 APC Road, Kolkata, 700009, India ' Department of Instrumentation and Electronics Engineering, Jadavpur University, Salt Lake Campus, Kolkata, 700098, India

Abstract: In this study a new designing methodology of internal model control (IMC) with anti-windup feature is suggested. Due to presence of integral action in the conventional IMC structure reset, windup effect is found quite often. This limitation can be overcome by incorporating the proposed anti-windup scheme. Efficacy of the reported technique is experimentally verified on hot air flow process (User Manual, 2014) and level control loop (User Manual, 2010b).

Keywords: internal model control; IMC; IMC-PID; integral windup; anti-windup scheme; model identification; hot air flow process; level control system.

DOI: 10.1504/IJAAC.2022.121126

International Journal of Automation and Control, 2022 Vol.16 No.2, pp.205 - 218

Received: 27 Oct 2019
Accepted: 03 Jun 2020

Published online: 28 Feb 2022 *

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