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In order to improve the reliability of the five-phase permanent magnet synchronous motor (FPMSM), the sensorless control of the FPMSM under single open-phase fault is investigated. Based on the spatial decoupling model of the FPMSM under single open-phase fault, the rotating high-frequency voltage injection method is employed to track the magnetic saturation salient pole, enabling sensorless control. The luenberger observer is utilized to observe the rotor position, and it compensates for the phase delay introduced by the filter. Thereby the accuracy and dynamic performance of sensorless control of the FPMSM under single open-phase fault are improved. Finally, the simulation results demonstrate the effectiveness and feasibility of the sensorless control strategy.

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Sensorless Control of Five-Phase Permanent Magnet Synchronous Motor Under Single-Phase Open-Circuit Fault

  • 会议论文

  • 发表日期：

    2025年

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  • Lidong Zhang,
  • Changpan Zhou,
  • Guanda Chen,
  • Guoxiu Jing

摘要

In order to improve the reliability of the five-phase permanent magnet synchronous motor (FPMSM), the sensorless control of the FPMSM under single open-phase fault is investigated. Based on the spatial decoupling model of the FPMSM under single open-phase fault, the rotating high-frequency voltage injection method is employed to track the magnetic saturation salient pole, enabling sensorless control. The luenberger observer is utilized to observe the rotor position, and it compensates for the phase delay introduced by the filter. Thereby the accuracy and dynamic performance of sensorless control of the FPMSM under single open-phase fault are improved. Finally, the simulation results demonstrate the effectiveness and feasibility of the sensorless control strategy.