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Research on the Influences of Time Harmonics on Permanent Magnet Synchronous Motors with Hybrid Magnet Poles

  • Hongbo Qiu
  • Yuedong Guo
  • Wenfei YuEmail author
  • Bingxia Tang
  • Cunxiang Yang
Original Article
  • 9 Downloads

Abstract

With the development of electric electron technology and controlling technology, controller for driving permanent magnet synchronous motors is used widely. The using of a controller can expand the motor speed range and improve motor runtime performances. However, the output current of a controller contains lots of time harmonics that will have bad influences on motor torque and losses. In order to analyze the influences of the time harmonics on the motor performances, different time harmonic currents were injected into the motor armature. Taking a 750 W, 250 r/min permanent magnet synchronous motor with hybrid magnet poles (HPPMSM) as an example, the 2-D finite model was established. On this basis, the torque ripple and eddy current losses of permanent magnets with different time harmonics were obtained. The influences of time harmonics on motor torque ripple and eddy current losses were determined, and the impacting mechanism was revealed. The analyses may be helpful for the optimal design of HPPMSM.

Keywords

Eddy current loss HPPMSM Time harmonics Torque ripple 

Notes

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Copyright information

© The Korean Institute of Electrical Engineers 2019

Authors and Affiliations

  • Hongbo Qiu
    • 1
  • Yuedong Guo
    • 1
  • Wenfei Yu
    • 1
    Email author
  • Bingxia Tang
    • 2
  • Cunxiang Yang
    • 1
  1. 1.Department of Electrical and Information EngineeringZhengzhou University of Light IndustryZhengzhouChina
  2. 2.Zhengzhou Water SupplyInvestment Holdings Co. LtdZhengzhouChina

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