Multi-period Reconfiguration of the Distribution Network Based on the Improved EM Algorithm

Abstract

Developing with the time, the distribution network technology has become increasingly perfect and mature. But with the improvement of people's living standards, the variety of the load is changing, the amount of the load is increasing, such as the electric vehicle as one of the members has gradually come into our life. Large-scale electric cars access to distribution network, the randomness and dispersion of electric cars put forward new requirements to management of the distribution network, and give challenges to the load capacity of transmission lines. In order to make the distribution network that contains electric vehicles run under the condition of safe, economic and steady, this paper make the distribution network into period divisions according to the characteristics of electric vehicle and the similarity of load, put forward a kind of distribution network dynamic reconfiguration scheme that based on the improved EM algorithm to solve distribution network optimal operation state.