Abstract
Sensor fault cannot be converted to system equation under the condition of under- measurement system. Aiming to solve this problem, we present a new method which treats sensor fault as state variable to enforce fault diagnosis. Firstly, the system model of sensor fault is constructed by putting sensor fault into the state equation. Then, the residual generator is designed using the space projection operation to solve the relevant parameter matrices. Since the proposed algorithm satisfies one-to-one correspondence of faults and residuals, it can achieve single and multiple sensors FDI. Simulation results show the effectiveness of the proposed approach.
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Yandong Hou received his Ph.D. degree in Power Electronics and Power Transmission from Shanghai Maritime University, Shanghai, China, in 2010. Currently, he is an Associate Professor in Henan University, Kaifeng, Henan. His research interests include fault diagnosis and Safety prediction in complex systems.
Qianshuai Cheng received his B.E. degree in Electrical & Information Engineering from Anyang Institute of Technology, China, in 2007. He is currently a M.E. student in School of Computer and Information Engineering, Henan University, China. He interests in fault diagnosis.
Aibing Qiu received his Ph.D. degree in Control Theory and Control Engineering from Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 2010. Currently, he is a Lecturer in School of Electrical Engineering in Nantong University. His research interests include fault diagnosis and sampled-data control.
Yong Jin received his B.S. degree in Electrical Engineering from Tongji University, Shanghai, China, in 1994 and his Ph.D. degree in Information and Communication Engineering from Northwestern Polytechnical University, Xi’an, China, in 2010. Since 2008, he was as an Associate Professor with the College of Computer and Information Engineering, Henan University, Kaifeng, Henan, China. Also, he has served as a peer-reviewer for various IEEE research journals since 2010. His research interests include array signal processing and statistical signal processing.
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Hou, Y., Cheng, Q., Qiu, A. et al. A new method of sensor fault diagnosis for under-measurement system based on space geometry approach. Int. J. Control Autom. Syst. 13, 39–44 (2015). https://doi.org/10.1007/s12555-013-0514-x
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DOI: https://doi.org/10.1007/s12555-013-0514-x