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논문 기본 정보

자료유형
학술저널
저자정보
Botong Li (Tianjin University) Yongli Li (Tianjin University) Chuang Yao (Tianjin University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.9 No.4
발행연도
2014.7
수록면
1,217 - 1,228 (12page)

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초록· 키워드

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A method for faulted line detection of four parallel lines on the same tower is presented, based on four-summing and double-differential sequences of one terminal current. Four-summing and double-differential sequences of fault current can be calculated using a certain transformation matrix for parameter decoupling of four parallel transmission lines. According to fault boundary conditions, the amplitude and phase characteristics of four-summing and double-differential sequences of fault current is studied under conditions of different types of fault. Through the analysis of the relationship of terminal current and fault current, a novel methodology for fault line detection of four parallel transmission line on the same tower is put forward, which can pick out the fault lines no matter the fault occurs in single line or cross double lines. Simulation results validate that the methodology is correct and reliable under conditions of different load currents, transient resistances and fault locations.

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Abstract
1. Introduction
2. Parameter Decoupling Method of Four Parallel Transmission Lines on the Same Tower
3. Characteristics of Fault Current in the Case of Fault in Single Line
4. Characteristics of Fault Current in the Case of Fault Cross Double Lines
5. Line Detection Methodology for Four Parallel Transmission Line on the Same Tower
6. Simulation Studies
7. Conclusion
References

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