Carrying Capacity Assessment of Distribution Network for Multiple Access Bodies Under the Background of Double Carbon

Abstract

Under the urgent need for the clean energy low-carbon transition, the evaluation of the carrying capacity of distributed power, electric vehicles, energy storage and other access bodies of the distribution network is of great significance to the construction of new power systems. Firstly, starting from the discussion of the energy characteristics of multiple access bodies, the characteristics of the access bodies are described uniformly according to the controllability and energy interaction mode. The characteristic curves of the access bodies are further decomposed to obtain the component matrix. Then, the similarity measurement is applied to analyze the correlation between the characteristics of the access bodies and the carrying capacity of the distribution network. On the basis of considering the energy interaction depth between the access bodies and the system, the similarity index between the access bodies characteristics and the load level is analyzed. To maximize the access bodies to participate in the energy interaction process, the two-stage optimization evaluation model is established with the goal of optimal similarity and the maximum new energy consumption. Finally, it is verified that the proposed evaluation method ensures the energy interaction level of the access bodies by the IEEE33 node test system, which provides a guidance for the access of the access bodies under the background of double carbon.