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The common direct current (DC) bus drive system for the open-end winding permanent magnet synchronous machine (OEW-PMSM), incorporates a zero-sequence loop that inherently leads to the production of zero-sequence current (ZSC). The presence of third harmonic flux linkage results in the induction of zero-sequence torque, which in turn exacerbates the torque ripple. In this paper, a filed oriented control (FOC) method with an improved quasi proportional resonant (IQPR) controller is presented. This method eliminates the zero-sequence circuit required in the conventional method of suppressing OEW-PMSM zero sequence current, and only uses the IQPR current controller on the d-axis. This strategy reduces torque ripple and lowers the total harmonic distortion of current, improving both the stable performance and response speed.

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Zero-Sequence Current Suppression Method for Open-End Winding Permanent Magnet Synchronous Motor Based on IQPR Controller

  • 会议论文

  • 发表日期：

    2025年

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  • Thomas Wu,
  • Tao Luo,
  • Kaiyuan Huang,
  • Zhaoqiang Zhang,
  • Yuhao Zhang,
  • Li Liu

摘要

The common direct current (DC) bus drive system for the open-end winding permanent magnet synchronous machine (OEW-PMSM), incorporates a zero-sequence loop that inherently leads to the production of zero-sequence current (ZSC). The presence of third harmonic flux linkage results in the induction of zero-sequence torque, which in turn exacerbates the torque ripple. In this paper, a filed oriented control (FOC) method with an improved quasi proportional resonant (IQPR) controller is presented. This method eliminates the zero-sequence circuit required in the conventional method of suppressing OEW-PMSM zero sequence current, and only uses the IQPR current controller on the d-axis. This strategy reduces torque ripple and lowers the total harmonic distortion of current, improving both the stable performance and response speed.