Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0967-0661(00)00041-1
Title: Experimental evaluation of an augmented IMC for nonlinear systems
Authors: Hu, Q.
Saha, P. 
Rangaiah, G.P. 
Keywords: Augmented internal model control
Input-output linearization
Internal model control
Neutralization process
Nonlinear systems
pH control
Issue Date: Oct-2000
Citation: Hu, Q., Saha, P., Rangaiah, G.P. (2000-10). Experimental evaluation of an augmented IMC for nonlinear systems. Control Engineering Practice 8 (10) : 1167-1176. ScholarBank@NUS Repository. https://doi.org/10.1016/S0967-0661(00)00041-1
Abstract: Performance of internal model control (IMC), which is affected by the inevitable errors in the model used, can be improved by augmented IMC (AuIMC) having an additional feedback of process/model mismatch through a suitable gain. This paper presents a detailed study on real-time control of an open-loop stable single-input-single-output (SISO) nonlinear system by AuIMC. The AuIMC structure is first analyzed theoretically to show its robustness and performance characteristics, followed by its experimental evaluation on pH control of a neutralization process. The experimental results show that significantly improved control is obtained by the AuIMC compared to the standard IMC. (C) 2000 Elsevier Science Ltd. All rights reserved.
Source Title: Control Engineering Practice
URI: http://scholarbank.nus.edu.sg/handle/10635/66589
ISSN: 09670661
DOI: 10.1016/S0967-0661(00)00041-1
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