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Robust fault diagnosis for switched systems based on sliding mode observer

Author

Listed:
  • Li, Jian
  • Guo, Xinxin
  • Chen, Cong
  • Su, Qingyu

Abstract

In this paper, the robust fault diagnosis for switched systems is studied based on sliding mode observers, taking the DC–DC power electronic converter as an example. According to the switched system mode, a sliding mode observer is designed through linear matrix inequalities to detect the fault. The fault identification unit not only locates the faulty component, but also realizes the identification of the faulty component parameter. For different components of the system, a series of adaptive sliding mode observers are designed to determine the location of fault. At the same time, an appropriate adaptive law is selected to estimate the parameters of the components. Finally, the proposed method is proved to be effective by an example of power electronic DC-DC boost converter.

Suggested Citation

  • Li, Jian & Guo, Xinxin & Chen, Cong & Su, Qingyu, 2019. "Robust fault diagnosis for switched systems based on sliding mode observer," Applied Mathematics and Computation, Elsevier, vol. 341(C), pages 193-203.
    • Handle: RePEc:eee:apmaco:v:341:y:2019:i:c:p:193-203
    DOI: 10.1016/j.amc.2018.08.036
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    Citations

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    Cited by:

    1. Wang, Zhichuang & Chen, Guoliang & Ba, Hezhen, 2019. "Stability analysis of nonlinear switched systems with sampled-data controllers," Applied Mathematics and Computation, Elsevier, vol. 357(C), pages 297-309.
    2. Xiaoyu Zhang & Shuiping Xiong, 2023. "Output Feedback Control Design for Switched Systems with Unmatched Uncertainties Based on the Switched Robust Integral Sliding Mode," Mathematics, MDPI, vol. 11(22), pages 1-17, November.
    3. Zhang, Jiancheng & Chadli, Mohammed & Wang, Yan, 2019. "A fixed-time observer for discrete-time singular systems with unknown inputs," Applied Mathematics and Computation, Elsevier, vol. 363(C), pages 1-1.
    4. Zhang, Zhi-Hui & Hao, Li-Ying & Guo, Mingjie, 2022. "Fault detection for uncertain nonlinear systems via recursive observer and tight threshold," Applied Mathematics and Computation, Elsevier, vol. 414(C).
    5. Mathiyalagan, Kalidass & Sangeetha, G., 2020. "Second-order sliding mode control for nonlinear fractional-order systems," Applied Mathematics and Computation, Elsevier, vol. 383(C).

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