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

  • 제57권6호
  • /
  • Pages.932-937
  • /
  • 2008
  • /
  • 1975-8359(pISSN)
  • /
  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

변압기 여자돌입에 의한 전력품질 분석

Analysis of Power Quality by Transformer Inrush Current

  • 서훈철 (기초전력연구원 전력시스템연구실) ;
  • 여상민 (성균관대 대학원 전자전기공학과) ;
  • 김철환 (성균관대 정보통신공학부) ;
  • 유영식 (한국전력거래소 계통보호팀) ;
  • 조범섭 (한국전력거래소 천안지사)
  • 발행 : 2008.06.01
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초록

The transformer inrush current can cause a voltage drop by source impedance. This current can impact sensitive loads by the voltage drop. Therefore, it is necessary to take measures to limit this inrush current. This study, described in this paper, analyzes the power quality affected by transformer inrush current using the X power system in Korea. The Electromagnetic Transients Program(EMTP) is used to analyze the transient phenomenon. We discuss a method to model the hysteresis curve of the transformer in EMTP. We carried out various simulations to analyze the power quality during transformer energization. The analysis results of voltage drop by the inrush current occurrence when certain requirements are met are presented.

키워드

참고문헌

  1. Mukesh Nagpal, Terrence G. Marinich, Ali Moshref, Kip Morison, and P. Kundur, "Assessing and Limiting Impact of Transformer Inrush Current on Power Quality", IEEE Trans. on Power Delivery, Vol. 21, No. 2, pp. 890-896, April 2006 https://doi.org/10.1109/TPWRD.2005.858782
  2. John H. Brunke, Klaus J. Frohlich, "Elimination of Transformer Inrush Currents by Controlled Swithing-Part I : Theoretical Considerations", IEEE Trans. On Power Delivery, Vol. 16, No. 2, pp. 276-280, April 2001 https://doi.org/10.1109/61.915495
  3. DCG-EMTP(Development coordination group of EMTP) Version EMTP-RV, Electromagnetic Transients Program. [Online]. Available : http://www.emtp.com
  4. Sebastien Dennetiere, Jean Mahseredjian, Manuel Martinez, Michel Rioual, Alain Xemard, "On the implementation of a hysteretic reactor model in EMTP", International Conference on Power System Transients, 2003
  5. 서훈철, 여상민, 김철환, 유영식, 조범섭, "EMTP -RV를 이용한 변압기 여자돌입전류 모델링", 2007년도 대한전기학회 하계학술대회 논문집, 2007년 7월
  6. 서훈철, 여상민, 김철환, 유영식, 조범섭, "EMTP를 이용한 제주계통의 여자돌입전류 모델링", 2007년도 대한전기학회 전력기술부문회 추계학술대회 논문집, pp. 95-97, 2007년 11월