전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제23권3호
  • /
  • Pages.168-173
  • /
  • 2018
  • /
  • 1229-2214(pISSN)
  • /
  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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Wide Band Gap 소자를 적용한 철도차량용 보조전원장치에 관한 연구

A Study on the Auxiliary Power Supply for the Railway Vehicle by Using Wide Band Gap Device

  • Choi, Yeon-Woo (Dept. of Control and Instrumentation Eng., Hanbat National University) ;
  • Lee, Byoung-Hee (Dept. of Electronics & Control Eng., Hanbat National University)
  • 투고 : 2018.01.23
  • 심사 : 2018.03.14
  • 발행 : 2018.06.20
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초록

In this paper, an auxiliary power supply (APS) for railroad cars is proposed. The APS can reduce the number of devices required to supply power through structural modification and operates at a high switching frequency by application of a SiC device. The voltage stress on the device in the proposed circuit can be reduced to less than half of the input voltage of the system; thus, a device with low breakdown voltage can be designed. By adapting a SiC device instead of an IGBT device, the proposed circuit can reduce switching and conduction losses and operate at a high switching frequency, thereby reducing output voltage and inductor current ripples in the proposed circuit. The theoretical analysis results of the proposed APS are verified with a 40 kW computer-based simulation and a 2 kW experiment.

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참고문헌

  1. J. M. Jo, Y. J. Han, C. Y. Lee, and J. H. Lee, "Development of lightweight auxiliary power supply using the resonant DC/DC converter for maglev," in Annual Conference of the Korean Society for Railway, pp. 1115-1120, May 2013.
  2. K. B. Lee, J. Y. Lim, J. M. Jo, J. S. Kim, H. J. Han, and S. H. Choi, "Study on the resonant HF DC/DC converter for the weight reduction of the auxiliary power supply of MAGLEV," in Annual Conference of the Korean Society for Railway, pp. 1825-1831, Oct. 2011.
  3. S. C. Rho and Y. H. Kim "A main power supply for railway vehicles using 3-level converters," in Annual Conference of the Korean Society for Railway, pp. 646-652, Oct. 2003.
  4. J. B. Lee and I. H. Jo, “Research on high-efficient power converters using WBG Devices for auxiliary power supplies(APS) system,” Journal of the Advanced Engineering and Technology, Vol. 10, No. 2, pp. 203-208, Jun. 2017.
  5. Y. W. Choi and B. H. Lee, "The study on auxiliary power unit for railroad car," in Annual Conference of the Korean Society for Railway, pp. 69-70, Jul. 2016.