چکیده مقاله
Islanded and grid connected are two working modes for microgrids, which they impose some challenges on overcurrent protection system Microgrid Short Circuit SC level is different in both modes which causes maloperation of relays Therefore, a new idea, relay, or method is necessary to solve this problem This paper proposes a curve optimization approach for microgrid protection Over Current Relays OCRs have different kinds, depended on their parameters like standard inverse and extremely inverse SC variation in two modes of microgrid can be compensated by appropriate relay curve selection In this paper, OCR curve optimization and selection is proposed for better protection coordination and microgrid protection A hybrid Genetic Algorithm GA and linear programming method LP is also used for finding the optimal settings and curve of relays Proposed method is applied to Canadian distribution benchmark and modified IEEE 14 bus The results indicate that the OCR curve selection is efficient tool for microgrid protection coordination and fast fault detection
کلیدواژهها
نویسندگان
T.S Aghdam
Shahid Beheshti University
A Nateghi
Shahid Sattari University
شیوه ارجاع
Aghdam, T.S and Nateghi, A,1394,Relay Curve Selection Approach for Optimal Protection of Microgrid,International Conference on New Research Findings in Electrical Engineering and Computer Science,Tehran
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