Fault Location Algorithm Based on Current Calculation for Parallel Transmission Lines on Same Tower

doi:10.11930/j.issn.1004-9649.2016.08.059.05

Abstract

Abstract: Fault location on double circuit transmission circuit is easily impacted by fault type and not well researched. A fault location method based on current calculation is proposed. The proposed method can be used in both single loop and cross line fault type. Based on distributed parameter PI model of PI equivalent circuit, the proposed method utilizes current on both terminals to locate fault. The fault location equation is simple and easily solvable with less impact on system operation mode and system parameters. PSCAD fault simulation and Matlab numerical results show that the proposed algorithm is reliable, practical and accurate. It is not easily affected by transition resistance and fault types.

Key words: distributed parameters, parallel transmission lines, current, fault location

CLC Number:

TM77

DING Jianzhong, BAO Youli, LI Cheng. Fault Location Algorithm Based on Current Calculation for Parallel Transmission Lines on Same Tower[J]. Electric Power, 2016, 49(8): 59-63.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.08.059.05

https://www.electricpower.com.cn/EN/Y2016/V49/I8/59

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