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The Estimation of Torque Ripple According to Parameters Considered Time-varying in Voltage Equation

전압방정식에서 시변성이 고려된 파라미터에 의한 토크 리플 산정

  • Gim, Gyu-Hwa (Dept. of Electrical Engineering, Changwon National University) ;
  • Cho, Gyu-Won (Motor R&D Center, S&T Motiv) ;
  • Kim, Gyu-Tak (Dept. of Electrical Engineering, Changwon National University)
  • Received : 2017.01.10
  • Accepted : 2017.06.27
  • Published : 2017.07.01

Abstract

In this paper, the calculation torque using the d-q axis has advantage like faster execution time. However, the torque ripple can't be considered in the torque calculation using d-q axis equivalent circuit because the time-dependent component is removed. When d-q transformation was performed, it was founded that some parameters has some characteristics. These characteristics were considered for representing torque ripple. The calculation with d-q axis transformation and Finite Element Analysis(FEA) were performed, and the results were compared. As a result, it was validated that the calculated torque can be expressed with ripple.

Keywords

References

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