A New Practical Fault Location Algorithm for Two-Terminal Transmission Lines

Abstract:

A new practical fault location algorithm using two-terminal electrical quantities is presented in this article, which takes into account the distributed parameter line model. The analytical expression of algorithm derives from Three-Phase decoupling. First, an analytical synchronization of the unsynchronized measurements is performed with use of the determined synchronization operator and the non-synchronizing angle is calculated with the two-terminal pre-fault electrical quantities. Then, the real-time transmission line parameters are calculated using two-terminal non-synchronized electrical quantities and the non-synchronizing angle. The algorithm overcomes the drawbacks of the traditional fault location algorithms, which does not exist the pseudo-root problem. Besides, it has the advantages of simple, practical, litter computation, no need to search and iterative and robustness. The algorithm has not influenced by fault types, the transition resistance and other factors. At last the developed fault location algorithm is tested using signals of ATP-EMTP versatile simulations of faults on a transmission line.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 4377-4384
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.4377
• Online since: November 2011
• Authors: Zhou Ma, Xiao Ning Li, Xiao Ming Zhang
• Keywords: Distributed Model, Fault Location, Line Parameters, Non-Synchronizing Angle, Three-Phase Decoupling

References

[1] Wu Bixing, Cheng Dongju. Summary of single-ended fault location algorithm(1) [J]. Electric Power Automation Equipment, 1995, (3): 30-34.

[2] Wu Bixing, Cheng Dongju. Summary of single-ended fault location algorithm(2) [J]. Electric Power Automation Equipment, 1995, (4): 23-25.

[3] Wu Bixing, Cheng Dongju. Summary of single-ended fault location algorithm(3) [J]. Electric Power Automation Equipment, 1996, (1): 15-19.

[4] Xu Qifeng, Wei Xiaoming. AN ALOGORITHM WITH ZERO-SEQUENCE CURRENT ANGLE CORRECTION FOR FAULT LOCATION OF HV TRANSMISSION LINES[J]. Automation of Electric Power Systems, 1990, 9(1): 33-39.

[5] Xu Bingyin, Li Jing, Chen Ping. MODERN FAULT LOCATION TECHNIQUES BASED ON FAULT GENERATED TRAVELLING WAVES AND THEIR APPLICATIONS[J]. Automation of Electric Power Systems, 2001, 25(23): 62-65.

[6] Teng Lin, Liu Wanshun, Li Ying. A NOVEL PRACTICAL ACCURATE FAULT LOCATION ALGORITHM FOR HV TRANSMISSION LINE[J]. Automation of Electric Power Systems, 2001, 25(18): 24-27.

[7] LIANG Jun, MA Chang-hui, YUN Zhi-hao. A FAULT LOCATION ALGORITHM FOR HIGH VOLTAGE OVERHEAD POWER TRANSMISSION LINE BASED ON LINE PARAMETER ESTIMATION[J]. Power System Technology, 2004, 28(4): 60-63.

[8] A.T. Johns and S. Jamali, Accurate fault location technique for powe transmission lines, IEE Proc. C, vol. 137, no. 6, pp.395-402, Nov. (1990).

DOI: 10.1049/ip-c.1990.0054

[9] FAN Chun-ju, DU Xiu-hua, LI Sheng-fang. An Adaptive Fault Location Technique Based on PMU for Transmission Line[J]. IEEE Trans on Power Delivery, 2007, 15(4): 1-6.

[10] WANG Ya-qiang, JIAO Yan-jun. Research on the EHV Long-line Fault Location[J]. Journal of North China Electric Power University, 2006, 33(1): 20-24.

[11] QUAN Yu-sheng , WANG Xiao-rong , YANG Ming-zhong , etal. Two new algorithms and their robustness for two-terminal fault location on HV transmission line[J]. Automation of Electric Power Systems, 2000, 24(10): 28-32.

[12] WANG Bo, WANG Wei, CHEN Chao. A survey of fault location on transmission line based on synchronized phasor measurement technique[J]. Power System Protection and Control, 2009, 37(13): 122-128.