Resilience Enhancement Method for Distribution Network Considering Distributed Generation Location

Aiming at the extreme natural disaster situations that can easily cause large-scale power outage failure in the distribution network (DN), this paper presents a method to improve the resilience of DN considering the location of distributed generation (DG). Firstly, the location of DG is determined by analyzing the importance of each bus of DN through network centrality. Secondly, the island partition model is built with the goal of maximizing the power value of the restored load within the island to prioritize the restoration of power to important loads in the system. Then, a multi-objective fault recovery model of the main network and the residual network is constructed, which takes the minimizing network loss, minimizes the number of switching operations and minimizing voltage quality deviation as objectives, and restores the power to the remaining loss of load areas. Finally, the IEEE 33-bus DN is adopted as a numerical example for verification. The simulation results show that the proposed method in this article can provide a reasonable recovery scheme after a DN failure and significantly improve the resilience of the DN.