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Development of a Resonant Auxiliary Power Supply Control Algorithm and Resonant Destruction Detecting for Railway Vehicles

Author

Listed:
  • An-Yeol Ko

    (Department of Electrical and Computer Engineering, Sungkyunkwna University, Suwon 16419, Korea)

  • Seong-Yun Kang

    (Dawonsys, Ansan 15655, Korea)

  • Il-Kuen Won

    (LG Electronics Gasan R&D Campus, Seoul 08592, Korea)

  • Junsin Yi

    (Department of Electrical and Computer Engineering, Sungkyunkwna University, Suwon 16419, Korea)

  • Chung-Yuen Won

    (Department of Electrical and Computer Engineering, Sungkyunkwna University, Suwon 16419, Korea)

Abstract

In this paper, the method and a control algorithm for detecting resonant destruction of a resonant auxiliary power supply for railway vehicle are proposed. It is essential to reduce the weight of the electric equipment attached to the lower part of the railway vehicle because it greatly affects the life of the railway vehicle, such as wheel and bearing. In order to reduce the weight and volume of the auxiliary power supply, in the case of windings, high-speed switching should be performed by lowering the input voltage. Therefore, in this paper, the auxiliary power supply control algorithm using an LLC resonant converter to reduce the weight of auxiliary power supply for railway vehicle is proposed, and the method of detecting resonant destruction due to device failure of a resonant converter is proposed. The proposed algorithm steps down the wire voltage using an input buck converter for high-speed switching, and the inverter input voltage is controlled through the LLC resonant converter. In addition, ZVS (Zero Voltage Switching) is operated to minimize the loss of the resonant converter, and the optimal design of the resonant tank is also proposed. In order to detect resonant destruction, a detection method formulated by analyzing the resonant current peak value for the load capacity is proposed. The algorithm proposed in this paper is verified by simulation and experiment.

Suggested Citation

  • An-Yeol Ko & Seong-Yun Kang & Il-Kuen Won & Junsin Yi & Chung-Yuen Won, 2022. "Development of a Resonant Auxiliary Power Supply Control Algorithm and Resonant Destruction Detecting for Railway Vehicles," Energies, MDPI, vol. 15(21), pages 1-21, October.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:8029-:d:956460
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    References listed on IDEAS

    as
    1. Hwa-Pyeong Park & Mina Kim & Jee-Hoon Jung, 2020. "A Comprehensive Overview in Control Algorithms for High Switching-Frequency LLC Resonant Converter," Energies, MDPI, vol. 13(17), pages 1-17, August.
    2. Chun-Yu Liu & Yi-Hua Liu & Shun-Chung Wang & Zong-Zhen Yang & Song-Pei Ye, 2021. "An Adaptive Synchronous Rectification Driving Strategy for Bidirectional Full-Bridge LLC Resonant Converter," Energies, MDPI, vol. 14(8), pages 1-16, April.
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