Accuracy improvement of impedance-based fault location method for power distribution network using distributed-parameter line model.

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Bibliographic Details
Title: Accuracy improvement of impedance-based fault location method for power distribution network using distributed-parameter line model.
Authors: Dashti, Rahman1, Sadeh, Javad1
Source: International Transactions on Electrical Energy Systems. Mar2014, Vol. 24 Issue 3, p318-334. 17p.
Subject Terms: Electric fault location, Power distribution networks, Algebraic equations, Distributed parameter networks, Electric lines
Abstract: SUMMARY Power Distribution System (PDS) is spread on different places. Therefore, PDS has many laterals and load taps. Accurate fault locating in PDS causes to improve reliability indices and its efficiency. In this paper, an improved method is suggested for fault location in PDS, which has a high accuracy. In the proposed algorithm, by using phase domain of distributed-parameter line model, a fifth-order algebraic equation of fault distance is obtained, which can improve the accuracy of determined fault distance for all types of faults. The proposed method is tested under different fault resistances in which the results show low sensitivity to this parameter. To evaluate the accuracy of the proposed method, the modified IEEE 34 Node Test Feeder is used, and its efficiency and accuracy is proved. Copyright © 2012 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
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Abstract:SUMMARY Power Distribution System (PDS) is spread on different places. Therefore, PDS has many laterals and load taps. Accurate fault locating in PDS causes to improve reliability indices and its efficiency. In this paper, an improved method is suggested for fault location in PDS, which has a high accuracy. In the proposed algorithm, by using phase domain of distributed-parameter line model, a fifth-order algebraic equation of fault distance is obtained, which can improve the accuracy of determined fault distance for all types of faults. The proposed method is tested under different fault resistances in which the results show low sensitivity to this parameter. To evaluate the accuracy of the proposed method, the modified IEEE 34 Node Test Feeder is used, and its efficiency and accuracy is proved. Copyright © 2012 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
ISSN:20507038
DOI:10.1002/etep.1690