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In traditional Direct Torque Control of Open-Winding brushless DC motors, large vectors are used as negative vectors, leading to significant torque fluctuations. This article proposes a novel zero vector and combines it with a duty cycle control algorithm to reduce motor torque ripple and improve system performance. Numerical simulations are conducted using MATLAB/Simulink, and experimental comparisons are made under different control conditions, including rated speed, low speed, and high speed operation, to observe torque ripple. The experimental results show a threefold suppression of torque ripple, indicating a significant improvement.

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Research on Torque Ripple Reduction in OW-BLDC Motors with Direct Torque Control

  • 会议论文

  • 发表日期：

    2025年

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  • Weiyang Ding,
  • Jianfei Yang,
  • Xin Qiu,
  • Wentao Hua,
  • Lun Hu,
  • Chongkai Wu

摘要

In traditional Direct Torque Control of Open-Winding brushless DC motors, large vectors are used as negative vectors, leading to significant torque fluctuations. This article proposes a novel zero vector and combines it with a duty cycle control algorithm to reduce motor torque ripple and improve system performance. Numerical simulations are conducted using MATLAB/Simulink, and experimental comparisons are made under different control conditions, including rated speed, low speed, and high speed operation, to observe torque ripple. The experimental results show a threefold suppression of torque ripple, indicating a significant improvement.