Integrated design of fault reconstruction and fault-tolerant control against actuator faults using learning observers

Qingxian Jia, Wen Chen, Yingchun Zhang and Huayi Li

International Journal of Systems Science, 2016, vol. 47, issue 16, 3749-3761

Abstract: This paper addresses the problem of integrated fault reconstruction and fault-tolerant control in linear systems subject to actuator faults via learning observers (LOs). A reconfigurable fault-tolerant controller is designed based on the constructed LO to compensate for the influence of actuator faults by stabilising the closed-loop system. An integrated design of the proposed LO and the fault-tolerant controller is explored such that their performance can be simultaneously considered and their coupling problem can be effectively solved. In addition, such an integrated design is formulated in terms of linear matrix inequalities (LMIs) that can be conveniently solved in a unified framework using LMI optimisation technique. At last, simulation studies on a micro-satellite attitude control system are provided to verify the effectiveness of the proposed approach.

Date: 2016
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DOI: 10.1080/00207721.2015.1118773

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