Browse > Article

Testing of Advanced Relaying and Design of Prototype IED for Power Transformer Protection  

Park, Chul-Won (원주대 전기과)
Shin, Myong-Chul (성균관대 정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.55, no.1, 2006 , pp. 6-12 More about this Journal
Abstract
A popular method used by primary protection for power transformer is current ratio differential relaying (RDR) with 2nd harmonic restraints. In modern power transformer due to the use of low-loss amorphous material, the 2nd harmonic component during inrush is significantly reduced. The higher the capacitance of the high voltage status and underground distribution, the more the differential current includes the 2nd harmonic component during internal fault. Thus the conventional method may not operate properly. This paper proposes an advanced relaying algorithm and the prototype IED hardware design and it's real-time experimental results. To evaluate performance of the proposed algorithm, the study is well constructed power system model including power transformer utilizing the EMTP software and the testing is made through simulation of various cases. The proposed relaying that is well constructed using DSP chip and microprocessor etc. has been developed and the prototype IED has been verified through on-line testing. The results show that an advanced relaying based prototype IED never mis-operated and correctly identified all the faults and that inrushes that are applied.
Keywords
Advanced relaying; Internal fault; Inrush; Power transformer protection; EMTP; IED; RDR;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 한국전력공사 전력연구원, 보호제어 유니트의 소프트웨어, 변전소종합보호제어 시스템설계 및 제작기술 개발 최종보고서 부록, pp. 1-87, 1997.2
2 박철원, 신명철 외 1인, '대용량 변압기 보호용 퍼지논리 계전기법과 웨이브렛 계전기법의 비교분석', 대한전기학회 논문지, Vol. 52P, No.4, pp. 179-187, 2003
3 박철원, 신명철 외 1인 'Numerical Algorithm for Power Transformer', KIEE International Trans. on PE, Vol. 4-A, No.3, pp. 146-151, 2004
4 박철원, 신명철, '특정 주파수 추출을 위한 여러가지 디지털 필터의 특성 비교', 대한전기학회 하계학술대회 논문집, pp. 360-362, 2004. 7
5 박철원 외 1인, '변압기용 IED의 보호계전 시스템', 대한전기학회 강원지부 추계학술대회 논문집, pp. 23-26, 2003. 11
6 명지대 차세대전력기술센터, 'Next-Generation Protection Technology', pp.1-214 Feb. 2002
7 CW. Park, YM. Jung, K.J. Ha, M.C. Shin, 'Numerical . Algorithm by Voltage-Current Trend- Based Relaying and Flux-Differential Current Slope Characteristic for Power Transformer Protection', APAP 2004, International Conference on Advanced Power Automation & Protection, pp. 381385, 2004. 10
8 Chul Won Park, Myong Chul Shin, et al., 'Fuzzy Logic-Based Relaying for Large Power Transformer Protection', IEEE Trans. on PWRD., Vol. 18, No.3, pp. 718-724, July 2003
9 강용철, 이병은, 김은숙, 원성호, '쇄교자속비를 이용한 변압기 보호', 대한전기학회 논문지, Vol. 52A, No. 11, pp. 655-660, Nov. 2003
10 M.A. Rahman, B. So, M.R. Zaman, M.A. Hoque, 'Testing of Algorithms for a Stand-Alone Digital Relay for Power Transformers', IEEE Trans. on PWRD., Vol. 13, No.2, pp. 374-385, April 1998
11 Alexander, R.L., 'Intelligent electronic device(IED) technology SCADA and 30 metering', Rural Electric Power Conference, 2002, pp. C6-C6_3, IEEE 2002
12 박철원, 김장휘, 이종주, 신명철, 'LabVIEW를 이용한 디지털 시뮬레이터', 대한전기 학회 하계학술대회 논문집, pp. 217-219, 2005. 7   과학기술학회마을
13 Sang-Tae Kim, Bo-Geon Jin, Seung- Jae Lee, Sang-Hee Kang, Myeon-Song Choi, Sang-Hyun Yoon, Tae-Sung Lee Sang-Ki Chung, 'v-i trend-based protective relaying algorithm for 3-phase power transformer', Power Engineering Society Summer Meeting, 2001. IEEE, Volume: 1, July pp. 605-610
14 박철원 외 1인, '변압기의 EMTP 모델링과 고장해석' 2003년도 대한전기학회 강원지부 학술강연회 논문집, pp. 1 - 6, Dec. 2003
15 Y.V.V.S. Murty, M.A. Rahman, 'A Stand-Alone Digital Protective Relay For Power Transformers', IEEE Trans. on PWRD., Vol. 6, No. 1, pp. 718-724, January 1991
16 박철원, 신명철, '전력용 변압기보효용 IED', 대한전기 학회 하계학술대회 논문집, pp. 217-219, 2005, 7
17 A.T. Johns, S.K. Salman, Digital Protection for Power System, IEEE POWER SERIES 15, Peter Peregrinus Ltd., pp. 183-187, 1995