The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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An Analysis on Fault Response Characteristics in Low Voltage DC Distribution System

저압직류 배전계통의 고장응답 특성 분석

  • Noh, Chul-Ho (Dept. of Information and Communication Engineering, Sungkyunkwan University) ;
  • Gwon, Gi-Hyeon (Dept. of Information and Communication Engineering, Sungkyunkwan University) ;
  • Song, Jong-Il (Dept. of Information and Communication Engineering, Sungkyunkwan University) ;
  • Han, Joon (Dept. of Information and Communication Engineering, Sungkyunkwan University) ;
  • Oh, Yun-Sik (Dept. of Information and Communication Engineering, Sungkyunkwan University) ;
  • Kim, Chul-Hwan (Dept. of Information and Communication Engineering, Sungkyunkwan University)
  • Received : 2016.01.06
  • Accepted : 2016.05.04
  • Published : 2016.06.01
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Abstract

DC-based power system is paid attention as interests in energy efficiency and power quality are increased. However, standardization and researches for commercializing Low Voltage DC(LVDC) distribution system are still insufficient. Protection system, which is closely related with reliability, power quality, safety, and life expectancy of components in power system, is also included. This paper therefore analyzes fault response characteristics in LVDC distribution system as a preliminary study on protection schemes. A stepwise analysis on fault current from both AC/DC converter and DC/DC converter is performed and related expressions are derived. And then, modeling and simulation with various conditions are conducted by using ElectroMagnetic Transients Program (EMTP) to verify analysis results. Based on research results in the paper, direction for development of protection schemes for LVDC distribution system is suggested.

Keywords

References

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Cited by

  1. A Study on the Fault Analysis of the LVDC Using PSCAD/EMTDC vol.65, pp.3, 2016, https://doi.org/10.5370/KIEEP.2016.65.3.219
  2. Development of fault section identification technique for low voltage DC distribution systems by using capacitive discharge current 2018, https://doi.org/10.1007/s40565-017-0362-4