170 / 2016-12-08 17:48:13

Distribution Network Island Separation With Distributed Generation (DG) Based on Dynamic Planning

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DG islanding operation can improve the reliability of customers efficiently when the main power supply network has a fault.This paper establishes the weight model of islanding based on the concept of minimum spanning tree. Then the non-fault area is generated by the minimum tree to form a radial distribution network after the fault isolated. In the meantime separating the tree by dynamic planning according to the goal of the restoring load as much as possible.Finally,using IEEE distribution system with 118 nodes as an example to separate the island. The result shows that the method is reasonable and valid and the reliability is directly relate to the output of DG.