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Internal Fault Detection and Fault Type Discrimination for AC Generator Using Detail Coefficient Ratio of Daubechies Wavelet Transform  

Park, Chul-Won (강릉원주대 전기정보통신공학부)
Shin, Kwang-Chul ((주)삼안 전기부)
Shin, Myong-Chul (성균관대 정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.58, no.2, 2009 , pp. 136-141 More about this Journal
Abstract
An AC generator is an important components in producing a electric power and so it requires highly reliable protection relays to minimize the possibility of demage occurring under fault conditions. Conventionally, a DFT based RDR has been used for protecting the generator stator winding. However, when DFTs based on Fourier analysis are used, it has been pointed out that defects can occur during the process of transforming a time domain signal into a frequency domain one which can lead to loss of time domain information. This paper proposes the internal fault detection and fault type discrimination for the stator winding by applying the detailed coefficients by Daubechies Wavelet Transform to overcome the defects in the DFT process. For the case studies reported in the paper, a model system was established for the simulations utilizing the ATP, and this verified the effectiveness of the proposed technique through various off-line tests carried out on the collected data. The propose method is shown to be able to rapidly identify internal fault and did not operate a miss-operation for all the external fault tested.
Keywords
ATP; DFT; Daubechies Wavelet Transform; Fault Detection; Fault Type Discrimination; Stator winding;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 K. Silva, W. Neves, B. Souza, "Distane Protection Using a Novel Phasor Estimation Algorithm Based on Wavelet Transform". IEEE PES 2008 General Meeting, 20-24, July 2008 PESGM2008-001413, pp. 1-8, 2008
2 박철원, "교류 발전기 고정자 사고검출을 위한 최적 마더 웨이브릿의 선정", 대한전기학회 논문지 Vol. 57P, Vol. 57P, No. 4, pp.377-372, 2008. 12
3 조성진, 강상희 외, "발전기보호 기본 알고리즘을 적용한 보호계전연구". 대한전기학회 하계학술대회 논문집, pp. 326-328, 2003.7
4 A.I.Megahed, A.M.Moussa, and A. E. Bayoumy, "Usage of wavelet transform in the protection of series compensated transmission lines," IEEE Trans. Power Del., Vol.21, no. 3, pp. 1213-1221, July 2006   DOI   ScienceOn
5 L.L Lai, "Wavelet Transform For High Impedence Fault Identification", Energy Systems Group, pp. 188-191, 1998
6 한국전력공사 전력연구원, "원자력발전소 표준화설계를 위한 조사용역", pp. 83-269, 1999
7 Michel Misiti et al., "MATLAB Wavelet Toolbox", User's Guide Version 1, pp. 1-1~2-42, 1997
8 A. Megahed, A. Ramadan, W. Elmady, "Power Transform Differential Relay Using Wavelet Transform Energies", IEEE PES 2008 General Meeting, 20-24, July 2008 PESGM2008-000118, pp. 1-6, 2008
9 O. Ozgonenel E. Arisoy, M.A.S.K Khan M.A.Rahman, "A Wavelet Power Based Algorithm For Synchronous Generator Protection", IEEE PES Summer Meeting pp. 128-134. 2006.6
10 박철원, 신명철,"고장전류의 웨이브릿 변환을 이용한 동기 발전기 보호 알고리즘", 대한전기학회 논문지 Vol. 56, No. 5. pp. 834-840, 2007.5   과학기술학회마을
11 M. Tsuji, S. Hamasaki, M. Korogi,"Characteristic of Power Series Type Wavelet Transform for Online Frequency Estimation", IEEE PES Summer meeting, pp. 177-182, 2007
12 G.S.Hope, P.K.Dash and O.P.Malik, "Digital Differential Protection of a Generator Unit : Scheme and Real-Time Test Results", IEEE Trans. on PAS, Vol. PAS-96, No. 2, March/April pp. 502-512, 1977
13 박철원, 신광철, 신명철, "교류 발전기의 고장 검출 알고리즘에 관한 비교 연구", 대한전기학회 논문지 Vol. 57P, No. 2, pp. 102-109, 2008.6   과학기술학회마을