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Analysis of Surge in Distribution System and ESS due to Direct Lightning in Distribution System with ESS using EMTP

EMTP를 이용한 ESS가 연계된 배전계통에서 직격뢰 발생 시 계통 및 ESS 측의 서지 해석

Seo, Hun-Chul
서훈철

  • Received : 2014.10.13
  • Accepted : 2014.12.02
  • Published : 2015.02.28

Abstract

The study concerning about the grid connection of the large-capacity energy storage system(ESS) is increasing. However, the transient study such as lightning or switching surge necessarily occurred at power system with ESS has been hardly performed. Therefore, this paper performs the analysis of lightning surge in distribution system with ESS using electromagnetic transient program(EMTP). The battery model in Matlab/Simulink is modeled by EMTP, which is the specialized software for power system transient study. Also, the bi-directional power electronics for interconnection of the battery and distribution system are modeled by EMTP. When the lightning is occurred at interconnection point of ESS, this paper simulates the existence of ESS and operation conditions of ESS and analyzes the surge in distribution system and ESS according to the various conditions.

Keywords

Battery;Distribution System;Energy Storage System(ESS);Lightning;Overvoltage

References

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