Journal of Systems Engineering and Electronics ›› 2020, Vol. 31 ›› Issue (3): 634-646.doi: 10.23919/JSEE.2020.000039

• Reliability • Previous Articles    

Evaluation of fault diagnosability for nonlinear uncertain systems with multiple faults occurring simultaneously

Lixiong LIN1,*(), Qing WANG1(), Bingwei HE1(), Xiafu PENG2()   

  1. 1 School of Mechanical Engineering and Automation, Fuzhou University, Fujian 350000, China
    2 Department of Automation, Xiamen University, Xiamen 361005, China
  • Received:2019-07-12 Online:2020-06-30 Published:2020-06-30
  • Contact: Lixiong LIN E-mail:linlixiong@126.com;wangqing_wangqing@163.com;mebwhe@fzu.edu.cn;xfpeng@xmu.edu.cn
  • About author:LIN Lixiong was born in 1985. He received his B.S. degree in electrical engineering and automation from Huaqiao University, China, in 2008, M.S. degree in detection technology from Xiamen University, China, in 2011, and Ph.D. degree in control theory and control engineering from Xiamen University, China, in 2016. He is currently an assistant professor with the School of Mechanical Engineering and Automation, Fuzhou University. His research interests include fault detection, multi-sensor fusion, robotic control system, and autonomous navigation. E-mail: linlixiong@126.com|WANG Qing was born in 1998. She received her B.S. degree in mechanical engineering from Hubei University of Arts and Sciences, China, in 2019. She is currently a master candidate with the School of Mechanical Engineering and Automation, Fuzhou University. Her research interests include machine vision, robotic control system, and fault detection. E-mail: wangqing_wangqing@163.com|HE Bingwei was born in 1973. He received his B.S. degree in mechanical engineering from Yanshan University, China in 1996, and M.S. and Ph.D. degrees in mechanical engineering from Xi'an Jiaotong University, in 1999 and 2003 respectively. He is currently a professor with the School of Mechanical Engineering and Automation, Fuzhou University. His research interests include intelligent mechanical and medical engineering, and multiple robots collaboration. E-mail: mebwhe@fzu.edu.cn|PENG Xiafu was born in 1963. He received his M.S. and Ph.D. degrees in control science from Harbin Engineering University, in 1994 and 2001 respectively. He is currently a professor with the Department of Automation, Xiamen University, Xiamen, China. His current research interests include the navigation and motion control of robots. He is a fellow of the Fujian Association for the Advancement of Automation and Power, and a senior member of the Chinese Institute of Electronics. He is the recipient of the provincial/ministerial Scientific and Technological Progress Award. E-mail: xfpeng@xmu.edu.cn
  • Supported by:
    the Natural Science Foundation of Fujian Province, China(2019J05024);the Education Department Foundation of Fujian Province, China(JAT170091);This work was supported by the Natural Science Foundation of Fujian Province, China (2019J05024) and the Education Department Foundation of Fujian Province, China (JAT170091)

Abstract:

Up to present, the problem of the evaluation of fault diagnosability for nonlinear systems has been investigated by many researchers. However, no attempt has been done to evaluate the diagnosability of multiple faults occurring simultaneously for nonlinear systems. This paper proposes a method based on differential geometry theories to solve this problem. Then the evaluation of fault diagnosability for affine nonlinear systems with multiple faults occurring simultaneously is achieved. To deal with the effect of control laws on the evaluation results of fault diagnosability, a design scheme of the evaluation of fault diagnosability is proposed. Then the influence of uncertainties on the evaluation results of fault diagnosability for affine nonlinear systems with multiple faults occurring simultaneously is analyzed. The numerical simulation results are obtained to show the effectiveness of the proposed evaluation scheme of fault diagnosability.

Key words: fault diagnosability, multiple faults occurring simultaneously, uncertain affine nonlinear system