DOI QR코드

DOI QR Code

Comparative Analysis of Magnetic Slot Wedges Design for Increasing Performance of Railway Traction Motor

  • Liu, Huai-Cong (Dept. of Electrical and Electronic Engineering, Hanyang University) ;
  • Cho, Sooyoung (Dept. of Electrical and Electronic Engineering, Hanyang University) ;
  • Hong, Hyun-Seok (Dept. of Electrical and Electronic Engineering, Hanyang University) ;
  • Joo, Kyoung-Jin (Dept. of Electrical and Electronic Engineering, Hanyang University) ;
  • Ham, Sang-Hwan (Dept. of Electrical and Railway Engineering, Kyungil University) ;
  • Lee, Ju (Dept. of Electrical and Electronic Engineering, Hanyang University)
  • 투고 : 2017.01.13
  • 심사 : 2017.06.22
  • 발행 : 2017.11.01

초록

This study focuses on the effects of using open stator slots in an interior permanent magnet traction motor with a magnetic slot wedge design in order to increase the power density at its base speed. In addition, such a configuration reduces the torque ripple under field-weakening conditions. Five different wedge models were selected, each of which was evaluated using a finite element analysis (FEA). Based on the initial model, we designed magnetic slot wedges for maximum back-EMF and minimum cogging torque. In addition, the d-q axis inductance was slightly altered due to the magnetic slot wedges. Finally, we analyzed the performance of a traction machine under field weakening control. Moreover, we have outlined the requirements for an ideal magnetic slot wedge design.

키워드

참고문헌

  1. R.E Kim, J.C Kim B.C Kim, Y.H Park, J.S Han, "Development of totally enclosed traction motor for low floor tram", The Korean Society for Railway spring conference, pp. 1642-1646, 2011.
  2. S.K. Yang, G.C. Jeong, H.C. Liu, C.B. Park, H.W. Lee, J. Lee, "A study on traction motor design for a Tram-Train which takes into consideration of a permanent magnet scattering", ICEMS, 18th International Conference on pp.1494-1497, 2015.
  3. K. Kiyota and A. Chiba, "Design of switched reluctance motor competitive to 60-kW IPMSM in third -generation hybrid electric vehicle," IEEE Trans. Ind. Appl., vol. 48, no. 6, pp. 2303-2309, Nov./Dec. 2012. https://doi.org/10.1109/TIA.2012.2227091
  4. T. Kosaka, T. Hirose, and N. Matsui, "Experimental studies on drive performances of less rare-earth PM hybrid excitation motor," in Proc. 8th IEEE ICPE ECCE, pp. 161-168, Jun. 2011.
  5. L. Zhu, S. Z. Jiang, Z. Q. Zhu, and C. C. Chan, "Analytical methods for minimizing cogging torque in permanent-magnet machines," IEEE Trans. Magn., vol. 45, no. 4, pp. 2023-2031, Apr. 2009. https://doi.org/10.1109/TMAG.2008.2011363
  6. N. Bianchi and S. Bolognani, "Design techniques for reducing the cogging torque in surface-mounted PM motors", IEEE Trans. Ind. Appl., vol. 38, no. 5, pp. 1259-1265, Sep. 2002. https://doi.org/10.1109/TIA.2002.802989
  7. G.W. Cho, W.S. Jang, K.B. Jang and G.T. Kim "The Optimal design of fractional-slot SPM to reduce cogging torque and vibration", Journal of Electrical Engineering & Technology, vol. 7, no. 5, pp. 753-758, Sep. 2012. https://doi.org/10.5370/JEET.2012.7.5.753
  8. J. Hur, B.W. Kim "Rotor Shape Design of an Interior PM Type BLDC Motor for Improving Mechanical Vibration and EMI Characteristics" Journal of Electrical Engineering & Technology vol. 5, no. 3, pp. 462-467, May 2010. https://doi.org/10.5370/JEET.2010.5.3.462
  9. S.J. K, E.J. Park, Y.J. Kim "Optimal design of ferromagnetic pole pieces for transmission torque ripple reduction in a magnetic-geared machine" Journal of Electrical Engineering & Technology vol. 6, no.11, pp. 1628-1633, Nov. 2016.
  10. G. D. Donato, F. G. Capponi, and F. Caricchi, "On the use of magnetic wedges in axial flux permanent magnet machines", IEEE Trans. Ind. Electro., vol. 60, vol. 11, pp. 4831-4840, Nov. 2013. https://doi.org/10.1109/TIE.2012.2225392