• 대한전기학회
Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
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  • 한국과학기술단체총연합회
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Title Lightning Overvoltage Analysis According to Interval of Arrester and Overhead Grounding Wire in DC Distribution System
Authors 안천용(An, Chun-Yong) ; 이종범(Lee, Jong-Beom) ; 김용갑(Kim, Yong-Kap)
DOI https://doi.org/10.5370/KIEE.2013.62.4.474
Page pp.474-481
ISSN 1975-8359
Keywords EMTP ; DC distribution system ; Lightning surge ; Overvoltage
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.