Optimal Energy Restoration in Radial Distribution: A Network Reconfiguration Approach by Kruskal’s Minimal Spanning Tree Algorithm

Power system service restoration using network configuration is an extremely explored known problem in power system. In restoration it is intended to restore the maximum number of loads subsequent to a blackout or any kind of fault by modifying the topological configuration of the power network. In the present work, Kruskal’s minimal spanning tree graph-based approach algorithm has been proposed to search an operative and fast solution for distributed system. To serve the power to the isolated load due to fault on distribution feeder networks, optimal selection of tie switch and sectionalizing switch operation has been performed. An appropriate operation of switches in the network reduces the figure of switching operations with an optimal voltage profile of each of the nodes with least active power losses. The evaluation of the suggested technique has been carried out on modified IEEE 33 bus systems, and results exhibit the signs of switching operation in power system service restoration.