Single-phase grounding distance protection of parallel transmission lines on same poles based on electric quantities data from single terminal and single line

被引：0

作者：

Bi, Tianshu ^{[1
]}

Li, Wei ^{[1
]}

Xu, Zhenyu ^{[1
]}

Yang, Qixun ^{[1
]}

机构：

[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University

来源：

Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2013年 / 37卷 / 07期

关键词：

Distance protection; Parallel transmission lines on same pole; Single-phase grounding fault; Transition resistance;

D O I：

10.7500/AEPS201111087

中图分类号：

学科分类号：

摘要：

The distance-measuring accuracy of conventional distance protection based on one-end sampling data from single line is difficult to satisfy specification requirement for parallel lines on same poles(PLSP) affected by zero-sequence mutual inductance between the lines. Using one-end sampling data from single line, a new algorithm for distance protection of single-phase grounding fault of parallel transmission lines, which can consider the effect of zero-sequence mutual inductance of adjacent lines is proposed. It achieves accurate distance-measuring. Through analyzing fault model of single-phase grounding fault of PLSP, the fault distance accurate expression with zero-sequence currents of parallel lines is derived. Further, the expression between zero-sequence current of the adjacent parallel line is analyzed. By substituting the estimate value of fault location, zero-sequence current of neighbor line can be represented by zero-sequence currents of the protection site so as to calculate zero-sequence current of PLSP with one-end sampling data from single line. Finally, an accurate fault impedance can be calculated by one-end sampling data from single line with consideration of the impact of mutual coupling effect. Simulation results with PSCAD show that the algorithm is insensitive to the accuracy of estimated fault location and has good adaptation capability for system operation. It can increase impedance-measuring accuracy of single phase grounding fault for PLSP. ©2013 State Grid Electric Power Research Institute Press.

引用

页码：88 / 93

页数：5

共 16 条

[1] (1996)
[2] (2005)
[3] Phadke A.G., Lu A.G., A new computer based integrated distance relay for parallel transmission lines, IEEE Trans on Power Apparatus and Systems, 104, 2, pp. 445-452, (1985)
[4] Jongepier A.G., Van Der Sluis L., Adaptive distance protection of a double circuit line, IEEE Trans on Power Delivery, 9, 3, pp. 1289-1297, (1994)
[5] Liao Y., Elangovan S., Digital distance relaying algorithm for first-zone protection for parallel transmission lines, IEE Proceedings of Generation, Transmission and Distribution, 145, 5, pp. 531-536, (1998)
[6] Yi H., Novosel D., Saha M.M., Et al., An adaptive scheme for parallel-line distance protection, IEEE Trans on Power Delivery, 17, 1, pp. 105-110, (2002)
[7] Bhalja B.R., Maheshwari R.P., High-resistance faults on two terminal parallel transmission line: analysis, simulation studies, and an adaptive distance relaying scheme, IEEE Trans on Power Delivery, 22, 2, pp. 801-812, (2007)
[8] Song G., Liu Z., Kang X., Et al., A scheme for ground distance protection of parallel transmission lines, Power System Protection and Control, 38, 12, pp. 102-106, (2010)
[9] Feng B., The effect of zero-sequence mutual inductance of double-circuit line on ground distance relay, Automation of Electric Power Systems, 14, 5, pp. 33-39, (1990)
[10] Yu B., Yang Q., Li Y., Et al., Research on fault phase selector of protective relay for double circuit lines on the same tower, Proceedings of the CSEE, 23, 4, pp. 38-42, (2003)

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