Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Electrical Power and Machines

Connection of Distributed Generation (DG) units to the distribution systems with proper allocation and size has different affirmative effects such as increasing the reliability of the network, decreasing losses, improving voltage profile, decreasing transmission and distribution energy costs and improving the power quality. With the widespread of using DG, the connection of DGs in the distribution system might cause difficulties in the operation of protective devices and protection coordination. This thesis introduces the problems associated with Recloser Fuse Miscoordination (RFM) that arises due to the presence of DG in the distribution networks. Thus two strategies are proposed to avoid the miscoordination between recloser and fuse. The proposed strategies are based on the general framework to maintain the coordination between recloser and fuse in distribution systems with optimizing DG over certain constraint considering the performance of the distribution system such as voltage profile enhancement and system power loss reduction

Issued also as CD