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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.11 No.1
- 발행연도
- 2016.1
- 수록면
- 9 - 19 (11page)
이용수
초록· 키워드
오류제보하기
Accurate models of the characteristics of typical inverse-time overcurrent (OC) protective devices play an important role in the protective coordination schemes. This paper presents a novel approach to determine the OC protective device parameters. The approach is based on the Eigensystem Realization Algorithm which generates a state space model to fit the characteristics of OC protective devices. Instead of the conventional characteristic curves, the dynamic state space model gives a more exact fit of the OC protective device characteristics. This paper demonstrates the feasibility of decomposing the characteristic curve into smooth components and oscillation components. 19 characteristic curves from 13 typical and 6 non-typical OC protective devices are chosen for curvefitting. The numbers of fitting components required are determined by the maximum absolute values of errors for the fitted equation. All fitted equations are replaced by a versatile equation for the characteristics of OC protective devices which represents the characteristic model of a novel flexible OC relay, which in turn may be applied to improve the OC coordination problems in the subtransmission and distribution systems.
목차
Abstract
1. Introduction
2. Models of Typical OC Protective Devices
3. Mathematical Description of ERA
4. Case Studies
5. Results Analysis
6. Practical Applications
7. Conclusions
References
참고문헌 (21)
참고문헌 신청
Conde, E. Vazquez, Application of a proposed overcurrent relay in radial distribution networks, Electric Power Systems Research, Vol. 81, No. 2, February 2011, pp. 570-579.
M.S. Sachdev, J. Singh, R. J. Fleming, Mathematical Models Representing Time-Current Characteristics of Overcurrent Relays for Computer Applications, IEEE PES Paper No. A78-131-5 Winter meeting, January 1978.
IEEE Committee Report, Computer representation of overcurrent relay characteristics, IEEE Transactions on Power Delivery, Vol. 4, No. 3, July 1989, pp. 1659-1667.
S. Chan, R. Maurer, Modeling Overcurrent Relay Characteristics, IEEE Computer Applications in Power, Vol. 5, No. 1, 1992, pp. 41-45.
IEEE PSRC Committee, IEEE Standard Inverse- Time Characteristic Equations for Overcurrent Relays, IEEE Transactoions on Power Delivery, Vol.14, No.3, July 1999, pp.868-872.
M.S. Sachdev, J. Singh, R. J. Fleming, Mathematical Models Representing Time-Current Characteristics of Overcurrent Relays for Computer Applications, IEEE PES Paper No. A78-131-5 Winter meeting, January 1978.
IEEE Committee Report, Computer representation of overcurrent relay characteristics, IEEE Transactions on Power Delivery, Vol. 4, No. 3, July 1989, pp. 1659-1667.
S. Chan, R. Maurer, Modeling Overcurrent Relay Characteristics, IEEE Computer Applications in Power, Vol. 5, No. 1, 1992, pp. 41-45.
IEEE PSRC Committee, IEEE Standard Inverse- Time Characteristic Equations for Overcurrent Relays, IEEE Transactoions on Power Delivery, Vol.14, No.3, July 1999, pp.868-872.
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UCI(KEPA) : I410-ECN-0101-2016-560-002322576