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Title: |
A New Fault Location Scheme Based on Distribution Parameter for Four-Parallel Transmission Lines on Same Tower |
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Source: |
Power and Energy Engineering Conference (PEEC 2010 E-BOOK)
(pp 604-608)
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Author(s): |
Peng Xu, Power Dispatching & Communication Center of China Southern Power Grid, CSG, Guangzhou, P.R China
Yuansheng Liang, School of Electric Power, South China University of Technology, SCUT, Guangzhou, P.R China |
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Abstract: |
In order to make more accurate fault location for four-parallel transmission lines on same tower, based on distribution parameter modal, a fault location scheme for four-parallel transmission lines is proposed by calculating tow terminal currents. For the purpose of obtaining transmission line distribution parameters of common-vector-positive component, the information of the normal voltage and current are used to construct the transmission lines parameters adaptive frequency domain equation. Base on the relationship between the common-vector-positive component and the circulation components, a novel the frequency domain fault location scheme of four-parallel transmission lines on same tower is proposed. The four-parallel transmission lines model is constructed for simulation. And the analysis results demonstrated that the proposed fault location scheme is capable to obtain fault location accuracy preferably and not affected by the system impedance and transition resistance.
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