Study of power supply restoration in distribution networks based on graph computation

In order to solve the troubles caused by the complex and variable topology of distribution networks and the change of load demand on the power supply restoration of distribution networks, the article proposes a correlation analysis method based on graph computation for power supply restoration of distribution networks, which provides a new idea for the operation and maintenance of distribution networks. A graph model of distribution network, which is highly consistent with the topology of distribution network, is constructed, and the power supply restoration strategy is optimized by applying graph computation, and finally verified by simulation in IEEE33 system. The results show that the model can comprehensively utilize the outage area to repeat the primary transfer and secondary transfer to restore the power supply, and at the same time determine the optimal restoration strategy according to the restoration objectives, which can make the power supply reach the restoration effect quickly and efficiently compared with other methods.