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

The Korean Institute of Electrical Engineers (대한전기학회)
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Lightning Overvoltage Analysis According to Interval of Arrester and Overhead Grounding Wire in DC Distribution System

직류배전시스템에서 피뢰기 및 가공지선 접지간격 변경에 따른 뇌과전압 해석

  • An, Chun-Yong (Dept. of Electrical Engineering, Wonkwang University) ;
  • Lee, Jong-Beom (Dept. of Electrical Engineering, Wonkwang University) ;
  • Kim, Yong-Kap (Dept. of Information and Communication Engineering, Wonkwang University)
  • Received : 2012.10.31
  • Accepted : 2013.02.27
  • Published : 2013.04.01
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Abstract

It is anticipated that AC distribution system can be replaced by DC distribution system in the near future because of the operation of various distributed source or microgrid system. However DC distribution system replacing 22.9kV AC distribution line is not sufficiently studied still. This paper describes lightning overvoltage analysis among many research fields should be studied to realize DC overhead distribution systems. DC distribution system is modeled using EMTP and overvoltage is analyzed according to interval of arrestor location, earth interval of overhead grounding wire and grounding resistance. It is evaluated that analysis results can be effectively used to design of future DC distribution system.

Keywords

References

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  1. Transient State Analysis of Lightning Surge on Distribution Systems vol.48, pp.30, 2015, https://doi.org/10.1016/j.ifacol.2015.12.366