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Automotive Engineering ›› 2025, Vol. 47 ›› Issue (11): 2159-2167.doi: 10.19562/j.chinasae.qcgc.2025.11.010

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Study on Fault-Tolerant Control for Fuel Cell Air Supply Systems via Extended State Observer

Sheng Zeng1,3(),Meiling Yue2,Xintong Li2   

  1. 1.School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081
    2.School of Mechanical,Electronics and Control Engineering,Beijing Jiaotong University,Beijing 100044
    3.Yutong Bus Co. ,Ltd. ,Zhengzhou 450000
  • Received:2025-04-14 Revised:2025-06-13 Online:2025-11-25 Published:2025-11-28
  • Contact: Sheng Zeng E-mail:13938478683@163.com

Abstract:

To address the fault-tolerant control issue in the air supply system of proton exchange membrane fuel cell (PEMFC) for automotive application, an adaptive control method based on extended state observer and input-output feedback linearization (IOFL) is proposed, which effectively observes the state changes of the system under fault conditions, adaptively adjusts the control input, and ensures the reliable and stable operation of the system. Firstly, a feedback linearization controller is constructed based on the PEMFC system state-space model from the literature. Subsequently, the system states are reconstructed using an extended state observer to achieve effective estimation of fault parameters. Based on the constructed model and controller, the control performance of both the IOFL controller and the proposed adaptive controller on the oxygen excess ratio is investigated for compressor overheating, increased mechanical friction and air manifold leakage faults. The results show that the adaptive controller can effectively eliminate steady-state errors, ensure stable system operation, and provide reliable state estimation when dealing with single and multiple faults, which significantly enhances the robustness and reliability of the air supply system control. Furthermore, the control results also verify that the proposed adaptive control strategy can effectively avoid compressor voltage oscillations, thereby further improving the stability and extending the lifespan of the fuel cell system.

Key words: proton exchange membrane fuel cells, air supply system, extended state observation, fault tolerant control