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Current Sensor Fault Diagnosis and Tolerant Control for Nine-Phase PMSM Drives Based on Improved Axis Rotation

Author

Listed:
  • Xudong Zhang

    (College of Electrical Engineering, Qingdao University, Qingdao 266071, China)

  • Xiaoming Liu

    (College of Electrical Engineering, Qingdao University, Qingdao 266071, China)

  • Xiaoqin Zheng

    (College of Electrical Engineering, Qingdao University, Qingdao 266071, China)

Abstract

Fault probability rises with an increase in the number of current sensors in multi-phase permanent synchronous motor (PMSM) drives. This paper proposes an improved axis rotation method for fault diagnosis and tolerant control to make the multi-phase PMSM drives against current sensor loss signal and gain faults. This method can effectively diagnose and distinguish faults without selecting a threshold value, and the degree of fault can be further estimated. The proposed method makes current sensor fault diagnosis and tolerant control become an integrated module. The validity and accuracy of the proposed method is verified by different fault diagnoses and tolerant control experiments of a 9 kw nine-phase PMSM drive.

Suggested Citation

  • Xudong Zhang & Xiaoming Liu & Xiaoqin Zheng, 2022. "Current Sensor Fault Diagnosis and Tolerant Control for Nine-Phase PMSM Drives Based on Improved Axis Rotation," Energies, MDPI, vol. 15(13), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4671-:d:848006
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    References listed on IDEAS

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    1. Chuntao Chen & Jie Xu & Xibo Yuan & Xinzhen Wu, 2019. "Characteristic Analysis of the Peak Braking Force and the Critical Speed of Eddy Current Braking in a High-Speed Maglev," Energies, MDPI, vol. 12(13), pages 1-15, July.
    2. Jieyun Wang & Wei Jiang & Shuren Wang & Jingying Lu & Barry W. Williams & Qianlong Wang, 2022. "A Novel Step Current Excitation Control Method to Reduce the Torque Ripple of Outer-Rotor Switched Reluctance Motors," Energies, MDPI, vol. 15(8), pages 1-15, April.
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