Power Restoration Method Considering Dynamic Distribution Network Reconstruction

A power supply recovery method considering dynamic distribution network reconstruction is proposed to address the fast time requirements for power outage recovery in existing distribution networks, taking advantage of the characteristics of forming multiple microgrids after N disconnection faults occur in the distribution network. This method is based on breadth first search and depth first search. Firstly, it predicts the upcoming power outage event, then establishes the grid structure power output model of the distribution network, and finally reconstructs the distribution network with constraints to restore power supply. The simulation analysis of the calculation example shows that this method can shorten the time for restoring power supply by 13.3% and reduce the load shedding ratio during faults by 17.1<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">%</sup>. The actual application results prove that this method provides important reference for power supply restoration in distribution networks under faults, especially extreme events.