新型输电线路灵敏电流差动保护

2008 Joint International Conference on Power System Technology and IEEE Power India Conference Pub Date : 2008-10-01 DOI:10.1109/ICPST.2008.4745368

S. Dambhare, S. Soman, M. Chandorkar

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引用次数: 3

摘要

提出了一种新的输电线路敏感电流差动保护方法。灵敏度的提高是由于对电流微分平面的抑制区域进行了自适应控制。差动保护中使用的判别函数对应于传输线pi-等效模型中串联支路电流的比值。它需要从全球定位系统(GPS)获得的时间同步测量。在四机十总线系统上进行了电磁瞬变程序(EMTP)仿真，以证实上述说法。结果表明了该方法的优越性。

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Novel Sensitive Current Differential Protection of Transmission Line

This paper proposes a novel approach for sensitive current differential protection of transmission line. The improvement in sensitivity is a result of adaptive control of the restraining region in a current differential plane. The discriminant function used in differential protection corresponds to the ratio of series branch current in the pi- equivalent model of the transmission line. It requires time synchronous measurements which can be obtained from Global positioning system (GPS). Electromagnetic transient program (EMTP) simulations on a four machine ten bus system are used to substantiate the claims. The results brings out the superiority of the proposed approach.

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来源期刊

2008 Joint International Conference on Power System Technology and IEEE Power India Conference

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