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High-Efficiency Bi-Directional Single-Phase AC/DC Converter Design and Field Application for LVDC Distribution

Author

Listed:
  • Juyong Kim

    (Smart Power Distribution Lab., KEPCO Research Institute, 105 Munji-Ro, Yuseong-Gu, Daejeon 34056, Korea)

  • Hongjoo Kim

    (Smart Power Distribution Lab., KEPCO Research Institute, 105 Munji-Ro, Yuseong-Gu, Daejeon 34056, Korea)

  • Jintae Cho

    (Smart Power Distribution Lab., KEPCO Research Institute, 105 Munji-Ro, Yuseong-Gu, Daejeon 34056, Korea)

  • Youngpyo Cho

    (Smart Power Distribution Lab., KEPCO Research Institute, 105 Munji-Ro, Yuseong-Gu, Daejeon 34056, Korea)

Abstract

This paper describes the design and field application of a high-efficiency single-phase AC/DC converter that is suitable for distribution lines. First, an appropriate AC/DC converter was designed in consideration of the environment of the application system. In order to ensure high efficiency and high reliability, we designed an optimum switching element and capacitor suitable for the converter, and the protection element of the AC/DC converter was designed based on these elements. The control function for the power converter suitable for an LVDC distribution system is proposed for highly reliable operation. The AC/DC converter was manufactured based on the design and its performance was verified during application in an actual low-voltage DC (LVDC) distribution grid through tests at the demonstration site. The application to a DC distribution system in an actual grid is very rare and it is expected that it will contribute to the expansion of LVDC distribution.

Suggested Citation

  • Juyong Kim & Hongjoo Kim & Jintae Cho & Youngpyo Cho, 2019. "High-Efficiency Bi-Directional Single-Phase AC/DC Converter Design and Field Application for LVDC Distribution," Energies, MDPI, vol. 12(11), pages 1-14, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:11:p:2191-:d:238323
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    Cited by:

    1. Guoqing Gao & Wanjun Lei & Yao Cui & Kai Li & Ling Shi & Shiyuan Yin, 2019. "Modeling and Stability Analysis of Model Predictive Control Dual Active Bridge Converter," Energies, MDPI, vol. 12(16), pages 1-15, August.

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