Anti-windup compensator design using Riccati inequality based approach

Triparna Ghosh, Parijat Bhowmick, Sourav Patra

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper presents a full-order dynamic anti-windup compensation design scheme for stable LTI systems using a Riccati inequality based approach. The scheme utilizes the Weston-Postlethwaite's generalized anti-windup configuration and applies right coprime factorization of the plant transfer function matrix to obtain a linear conditioning scheme. The proposed anti-windup scheme ensures the internal stability of the closed-loop control system in presence of actuator saturation and also reduces the performance degradation caused by the saturation phenomena. The Riccati inequality based approach offers a simple and straightforward anti-windup compensator design method which is independent of the design of nominal controller. The effectiveness of the proposed technique is demonstrated through a MIMO example.

    Original languageEnglish
    Pages (from-to)615-620
    Number of pages6
    JournalIFAC-PapersOnLine
    Volume51
    Issue number1
    DOIs
    Publication statusPublished - 18 Jun 2018

    Keywords

    • Anti-windup compensation
    • L-gain
    • LMI
    • Lyapunov stability
    • Riccati inequality

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