Review on the Development of Energy Efficiency Assessment Methods for Distribution Networks

With the overall deployment and continuous promotion of the "double carbon" goal in China, a large number of new distributed power sources are connected to distribution network, which makes the scale of distribution network larger and the structure more complex, and the loss problem more serious. Accurate and reliable energy efficiency evaluation of distribution network can effectively guide the decision-making and planning of distribution network and the optimization of various demands in the operation stage of distribution network. This paper describes the characteristics of different distribution networks, sorts out the main contents and calculation methods of distribution network index evaluation methods, and summarizes the main contents and advantages and disadvantages of the comprehensive evaluation methods of distribution networks. After comprehensive analysis, the future development direction of energy efficiency evaluation methods for distribution networks is prospected.