Journal of Power Electronics

  • 제20권4호
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  • Pages.971-979
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  • 2020
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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DOI QR코드

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Current harmonic selection for torque ripple suppression based on analytical torque model of PMSMs

  • Zhong, Zaimin (School of Automotive Studies, Tongji University) ;
  • Zhou, Shuihua (School of Automotive Studies, Tongji University) ;
  • Hu, Chengyu (School of Automotive Studies, Tongji University) ;
  • You, Junming (School of Automotive Studies, Tongji University)
  • 투고 : 2020.02.21
  • 심사 : 2020.04.22
  • 발행 : 2020.07.20
⟨ 이전 논문 다음 논문 ⟩

초록

For permanent magnet synchronous motors (PMSMs) without sufficient design optimization, it is necessary to inject current harmonics to suppress torque ripple. Due to the influence of magnetic saturation, the current harmonics for torque ripple suppression changes with the electrical loads. Based on an existing analytical torque model of a PMSM considering spatial harmonics and magnetic saturation, this paper established a torque harmonic coupling model through a Taylor expansion and a harmonic balance method. Then, based on the torque harmonic coupling model, current harmonic selection for torque ripple minimization was proposed. The validity of the torque harmonic coupling model and current harmonic selection was verified by a finite element analysis (FEA) and experiments on a laboratory PMSM drive system.

키워드

과제정보

This work was supported by the National Key Research and Development Plan of China under Grant 2017YFB0103200.

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