전기학회논문지P (The Transactions of the Korean Institute of Electrical Engineers P)

  • 제57권2호
  • /
  • Pages.91-95
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  • 2008
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  • 1229-800X(pISSN)
  • /
  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

발전기시스템의 고정자보호 IED를 위한 개선된 알고리즘

Advanced Algorithm for IED of Stator Winding Protection of Generator System

  • 박철원 (강릉대학교 전기정보통신공학부)
  • 발행 : 2008.06.01
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⟨ 이전 논문 다음 논문 ⟩

초록

The large AC generator fault may lead to large impacts or perturbations in power system. The generator protection control systems in Korea have been imported and operated through a turn-key from overseas entirely. Therefore a study of the generator protection field has in urgent need for a stable operation of the imported goods. In present, the algorithm using the current ratio differential relaying based DFT for stator winding protection or a fault detection had been applied that of internal fault protection of a generator. the DFT used for the analysis of transient state signal conventionally had defects losing a time information in the course of transforming a target signal to frequency domain. In this paper, the discrete wavelet transform (DWT) was applied a fault detection of the generator being superior to a transient state signal analysis and being easy to real time realization. The fault signals after executing a terminal fault modeling collect using a MATLAB package, and calculate the wavelet coefficients through the process of a muiti-level decomposition (MLD). The proposed algorithm for a fault detection using the Daubechies WT (wavelet transform) was executed with a C language and the commend line function for the real time realization after analyzing MATLAB's graphical interface. The advanced technique had improved faster a speed of fault discrimination than a conventional DFR based on DFT.

키워드

참고문헌

  1. 박철원, "발전기 시스템의 과도해석과 IED 용 개선된 알고리즘 개발" 최종보고서 pp. 1-120 :2006.12
  2. 박철원 외 3인, "대용량 발전기보호를 위한 발전기모델링", 대한전기학회 하계학술대회 논문집 pp. 121-122, 2006.7
  3. 박철원 외 4인 "발전소의 발전기 보호계전시스템", 대한전기학회 하계 학술대회논문집 pp. 151-152, 2006.7
  4. 박철원 외 2인, "동기 발전기의 과도해석" 대한전기학회 전문대학교육 위원회 논문집 pp. 120-125, 2006.10
  5. 박철원 외 3인, "고장전류를 이용한 동기 발전기 보호" 대한전기학회 전력기술부문회 논문집 pp. 1-5, 2006.12
  6. 박철원 외 4인, "동기 발전기의 평형 및 불평형 고장해석" 대한전기학회 전력기술부문회 논문집 pp. 402-404, 2006.11
  7. 박철원, "이산 웨이브릿 변환을 이용한 발전기 보호" 대한전기학회
  8. 박철원 외 2인, "교류발전기 보호를 위한 고장검출 알고리즘의 비교 분석" 대한전기학회 전력기술부문회 하계학술대회 논문집, pp. 75-77, 2007.11
  9. 박철원, 신명철, "고장전류의 웨이브릿 변환을 이용한 동기 발전기 보호 알고리즘" 대한전기학회 논문지 Vol. 56, No.3. pp. 834-839, 2007.5
  10. N.L. Tai and O. Ai, ''Protection technique based on delta-zero sequence voltages for generator stator ground fault", lEE Proc.-Gener. Transm Distrib., Vol. 151, No.5, pp. 651-657. Sep., 2004 https://doi.org/10.1049/ip-gtd:20040644
  11. D. Bi, X Wang, W. Wang, Z. O. Zhu, and Howe, "Improved transient sirmlation of salient-pole synchronous generators with internal and ground faults in stator winding", IEEE Trans. Energy Conversion vol. 20, no. 1, pp. 128-134, Mar. 2005 https://doi.org/10.1109/TEC.2004.841509
  12. M. Fulczyk and R. L. Schlake, " Influence of the generator load conditions on third harrmnic voltages in generator stator windings", IEEE Trans. on Energy Conversion, vol. 20, no. 1, pp. 158-165, Mar. 2005 https://doi.org/10.1109/TEC.2004.842391
  13. O. Ozgonenel E. Arisoy, MAS.K Khan M.A.Rahman, "A Wavelet Power Based Algorithm For Synchronous Generator Protection", IEEE PES Summer Meeting pp. 128-134.2006.6
  14. 이승재, 최면송, 강상희, 현승호 조성진, " 발전기 보호기본 알고리즘을 적용한 보호계전 연구', 대한전기학회 하계학술대회 논문집 pp.326-328, 2003.7
  15. 강상희, 권영진, 김철훈, " 발전기 과도현상에 따른 발전기 보호 계전기 동작 분석", 대한전기학회 전력기술부문회 논문집 pp. 378-300 2006.11
  16. 전력연구원, "울진 N/P #4 Unit 발전기 준공시험 보고서, 1998. 4
  17. 전력연구원, "원자력발전소 표준회절계를 위한 조사용역", pp. 83-269, 1999
  18. IEEE Power System Relaying Committee, "IEEE Guide for AC Generator Protection", IEEE Std. C37.102-1995
  19. IEEE Power System Relaying Committee," IEEE Guide for Generator Ground Protection(C37.101-1993)
  20. Working Group Report, "Grounding and Ground Fault Protection of Multiple Generator Instillations on medium- Voltage Industrial and Commercial Power Systems" : Part 1- Part 4 (Part3 : Protection Methods), IEEE Trans. on Industrial Applications Vol. 40, No. 1, pp. 24-28, 2004 https://doi.org/10.1109/TIA.2003.821644
  21. IEEE Tutorial Course, "Advancerrrnts in l\Ilicroprocessor Based Protection and Communication", Power System Relaying Committee of the IEEE Power Engineering Society, pp. 1-81, 1997
  22. Hadi Saadat, ''Power System Analysis", WCB/McGraw-Hill, pp. 314-335, 1999
  23. Michel Misiti et al., "MATLAB Wavelet Toolbox", User's Guide Version 1, pp. 1-1-2-42, 1997