Abstract: The environmental concerns, limitation of building new transmission lines, increasing transmittable power and reducing transmission losses are among the main reasons to install series capacitors on transmission lines. In this paper, the authors have proposed a new algorithm which utilizes the positive sequence network, in order to determine the fault location on series compensated parallel transmission lines. The proposed scheme is based on the superposition positive sequence current signal from local end. The proposed method does not require voltage signals as well as remote-end data. Furthermore, it eliminates effects of series compensation and mutual coupling on locating fault point. To evaluate the proposed method, different fault scenarios were simulated on 400kV, 300km series compensated parallel transmission line using EMTDC/PSCAD software. The result of simulations determines the high accuracy of the proposed method in pinpointing faults.
Keywords: Fault location, local measurement, parallel line, power system faults, and series capacitor.
Title: Single-End Fault Location Algorithm for Series-Compensated Parallel Transmission Lines Using Only Current Measurement
Author: Mohsen Ansari
International Journal of Electrical and Electronics Research
ISSN 2348-6988 (online)
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