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

Juyong Kim, Hongjoo Kim, Jintae Cho and Youngpyo Cho
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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

Energies, 2019, vol. 12, issue 11, 1-14

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.

Keywords: AC/DC converter; LVDC distribution; application (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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