Reconfiguration Capability Evaluation and Optimization for Distribution Network Based on Spanning Tree Metrics

The reconfiguration of distribution network plays an essential role in improving the stability and reliability of power systems, nevertheless, the majority of research is based on a given network, whose reconfiguration possibility is fixed. Actually, the reconfiguration capability could be considered and optimized in the planning stage of distribution network. In this work, a novel quantitative evaluation metric for the reconfiguration capability of the power grid is proposed based on complex system theory from the perspective of network topology. An optimization model for maximizing the reconfiguration capability of power grids is established, in which a fine-tuning greedy heuristic solution strategy is developed as well, providing an integrated framework for reconfiguration capability evaluation. The superiority of the proposed heuristic algorithm over other 4 methods is demonstrated on 4 cases, including the IEEE 16-bus, 33-bus, 70-bus, and 118-bus test systems.