283 / 2021-06-18 14:22:22
Research on Fault Diagnosis of Actuator in the Suspension System of Maglev Trains Based on Robust Observer
maglev trains, suspension system, robust observer, fault diagnosis
终稿
Zhiqiang Wang / National University of Defense Technology
During the operation of maglev trains, the actuator fault of the suspension system will affect the normal operation of the trains and may cause serious safety accidents. Therefore, how to make fault diagnosis for the actuator of the suspension system is the premise of train safe operation. In this paper, a fault diagnosis method based on robust observer is used to detect and isolate the actuator fault. First, the fault is decoupled from the system interference through state and output transitions, so that module 1 is related to the fault and interference, while module 2 is only related to the fault. Then, a sliding mode observer is designed for module 2, and the output error is taken as residual error to judge the occurrence of the fault. Eventually, the sliding mode observer is designed for each actuator, and based on the system structure matrix, which actuator position produces the fault is determined. The experimental results show that these schemes mentioned in this paper can successfully realize fault detection and isolation after the actuator broke down, which provides strong support for the safe operation of maglev trains.
重要日期
  • 会议日期

    07月01日

    2021

    07月04日

    2021

  • 07月03日 2021

    报告提交截止日期

  • 11月03日 2021

    注册截止日期

主办单位
Huazhong University of Science and Technology, China
协办单位
University of Sydney, Australia
Southwest Jiaotong University, China
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