Minimum-time Feedforward Plus PID Control for MIMO Systems

In this paper we propose a technique for the determination of a feedforward control law to be applied to a closed-loop PID-based control system for a multi-input multi-output process in order to achieve a minimum-time transition of the outputs subject to constraints on both the control variables and...

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Bibliographic Details
Published inIFAC Proceedings Volumes Vol. 41; no. 2; pp. 12917 - 12922
Main Authors Piccagli, Stefano, Visioli, Antonio
Format Journal Article
LanguageEnglish
Published 2008
Online AccessGet full text
ISSN1474-6670
DOI10.3182/20080706-5-KR-1001.02184

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Summary:In this paper we propose a technique for the determination of a feedforward control law to be applied to a closed-loop PID-based control system for a multi-input multi-output process in order to achieve a minimum-time transition of the outputs subject to constraints on both the control variables and the system outputs. The optimal command inputs are determined by suitably approximating the state variables and the input signals by means of Chebyshev series and by subsequently solving a constrained optimisation problem. Simulation results demonstrate the effectiveness of the methodology.
ISSN:1474-6670
DOI:10.3182/20080706-5-KR-1001.02184