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An intelligent and efficient fault location and diagnosis scheme for radial distribution systems

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9 Author(s)
Seung-Jae Lee ; Dept. of Electr. Eng., Myongji Univ., Yongin, South Korea ; Myeon-Song Choi ; Sang-Hee Kang ; Bo-Gun Jin
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In this paper, an effective fault location algorithm and intelligent fault diagnosis scheme are proposed. The proposed scheme first identifies fault locations using an iterative estimation of load and fault current at each line section. Then an actual location is identified, applying the current pattern matching rules. If necessary, comparison of the interrupted load with the actual load follows and generates the final diagnosis decision. Effect of load uncertainty and fault resistance has been carefully investigated through simulation results that turns out to be very satisfactory.

Published in:

IEEE Transactions on Power Delivery  (Volume:19 ,  Issue: 2 )