作者:
B Das，JV Reddy
关键词:
fault location ； fuzzy logic ； power transmission faults ； power transmission lines ； power transmission protection ； digital distance protection ； fault classification ； fault resistance ； fuzzy logic ； line current measurement
摘要:
In this paper, a fuzzy-logic-based algorithm to identify the type of faults for digital distance protection system has been developed. The proposed technique is able to accurately identify the phase(s) involved in all ten types of shunt faults that may occur in a transmission line under different fault resistances, inception angle, and loading levels. The proposed method needs only three line-current measurements available at the relay location and can perform the fault classification task in about a half-cycle period. Thus, the proposed technique is well suited for implementation in a digital distance protection scheme.
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