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

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.

Keywords:

• Fault reconstruction
• fault-tolerant control
• learning observers
• linear matrix inequality
• attitude control system

Acknowledgments

The authors gratefully acknowledge the associate editor and anonymous reviewers for their helpful comments and suggestions, which have improved the quality of this article.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work is partially supported by National Natural Science Foundation of China [grant number 61304237]; Open Funding for National Defense Key Subject Laboratory of Micro and Small Spacecraft Technology [grant number 20090450126].

Notes on contributors

Qingxian Jia

Qingxian Jia received his MS and PhD degrees from Control Science & Engineering in Harbin Institute of Technology, China, in 2010, 2015, respectively. Currently, he is a postdoctoral researcher with School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai, China. His research interests include fault diagnosis and fault-tolerant control for spacecraft systems, spacecraft attitude cooperative control.

Wen Chen

Wen Chen received his PhD degree from Simon Fraser University, Burnaby, BC, Canada, in 2004. From 2005 to 2007, he was a postdoctoral researcher with the University of Louisiana, Lafayette. After that period, he worked in industrial companies as a control systems engineer. He joined the Division of Engineering Technology, Wayne State University, Detroit, MI, in 2009. His teaching and research interests include control systems, alternative energy storage and fault diagnosis of industrial systems.

Yingchun Zhang

Yingchun Zhang received his BE degree in automation from Tsinghua University, Beijing, China, and MS degree in control science & engineering from Harbin Institute of Technology, China, in 1984, 1987, respectively. He is currently a full professor in Harbin Institute of Technology and a chief engineering of Shenzhen Aerospace Dongfanghong HIT Satellite Company Ltd. His research interests include satellite fault diagnosis, fault-tolerant control and micro-satellite design.

Huayi Li

Huayi Li received his PhD degree in control science & engineering from Harbin Institute of Technology, China, in 2008. Currently, he is an associate professor in Spacecraft Design in Harbin Institute of Technology, Harbin, China. His research interests include fault monitoring, satellite formation and satellite electronic testing.