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arXiv · 2306.01221

An Approach to Mismatched Disturbance Rejection Control for Continuous-Time Uncontrollable Systems

Shichao Lv·Hongdan Li·Kai Peng·Shihua Li·Huanshui Zhang
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Abstract

This paper focuses on optimal mismatched disturbance rejection control for linear continuoustime uncontrollable systems. Different from previous studies, by introducing a new quadratic performance index to transform the mismatched disturbance rejection control into a linear quadratic tracking problem, the regulated state can track a reference trajectory and minimize the influence of disturbance. The necessary and sufficient conditions for the solvability and the disturbance rejection controller are obtained by solving a forward-backward differential equation over a finite horizon. A sufficient condition for system stability is obtained over an infinite horizon under detectable condition. This paper details our novel approach for transforming disturbance rejection into a linear quadratic tracking problem. The effectiveness of the proposed method is provided with two examples to demonstrate.

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Shichao Lv, Hongdan Li, Kai Peng, Shihua Li, Huanshui Zhang. 2023-06-02. An Approach to Mismatched Disturbance Rejection Control for Continuous-Time Uncontrollable Systems. https://arxiv.org/abs/2306.01221

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