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INTERNATIONAL JOURNAL of RENEWABLE ENERGY RESEARCH T.S.Aghdam and H.K.Karegar
Islanded and grid-connected are two working modes for microgrids, which they impose some challenges on overcurrent protection scheme. Microgrid Short Circuit (SC) level is different in both modes which causes mal-operation of relays. Therefore, a new idea, relay, or method is necessary to solve this problem. This paper proposes a curve optimization approach for the microgrid protection. Directional Over Current Relays (DOCRs) have different kinds, depended on their parameters like standardfatcat:pi3bvoezpffrlo6ud44jsqyqve