KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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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.

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