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Switching Frequency Determination of SiC-Inverter for High Efficiency Propulsion System of Railway Vehicle

Author

Listed:
  • Joon-Hyoung Ryu

    (Propulsion System Research Team, Korea Railroad Research Institute, 176, Cheoldo Bangmulgwan-ro, Uiwang-si 16105, Gyeonggi-do, Korea)

  • June-Hee Lee

    (Propulsion System Research Team, Korea Railroad Research Institute, 176, Cheoldo Bangmulgwan-ro, Uiwang-si 16105, Gyeonggi-do, Korea)

  • June-Seok Lee

    (School of Electronics and Electrical Engineering, Dankook University, Yongin-si 16890, Korea)

Abstract

This paper suggests the reasonable switching frequency determination method for achieving highest efficiency of the railway propulsion system consisting the silicon carbide (SiC) inverter and permanent magnet synchronous motor (PMSM). The SiC power device allows increasing the switching frequency of the inverter because it has the small switching power loss. The total efficiency is taken into account for determining the switching frequency of SiC inverter in this paper. In the efficiency analysis of SiC inverter and PMSM, the PMSM drive control is considered with the hybrid switching method combined the synchronous PWM and asynchronous PWM. The result of the analysis shows the efficiency curve of propulsion system depending on the switching frequency. The switching frequency having the minimum power loss of propulsion system is selected based on the extracted power loss curve.

Suggested Citation

  • Joon-Hyoung Ryu & June-Hee Lee & June-Seok Lee, 2020. "Switching Frequency Determination of SiC-Inverter for High Efficiency Propulsion System of Railway Vehicle," Energies, MDPI, vol. 13(19), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:19:p:5035-:d:419007
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    References listed on IDEAS

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    1. Wenping Chai & Thomas A. Lipo & Byung-il Kwon, 2018. "Design and Optimization of a Novel Wound Field Synchronous Machine for Torque Performance Enhancement," Energies, MDPI, vol. 11(8), pages 1-15, August.
    2. Peter Bober & Želmíra Ferková, 2020. "Comparison of an Off-Line Optimized Firing Angle Modulation and Torque Sharing Functions for Switched Reluctance Motor Control," Energies, MDPI, vol. 13(10), pages 1-13, May.
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    Cited by:

    1. João Pedro F. Trovão & Minh Cao Ta, 2022. "Electric Vehicle Efficient Power and Propulsion Systems," Energies, MDPI, vol. 15(11), pages 1-4, May.

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