Research and Assumption on the Grid Structure of DC Distribution Network

Abstract

Based on the typical structural characteristics of DC distribution network, this paper analyzes the application scenarios of different types of DC distribution systems based on the development planning and industrial layout of some cities. The differentiated demands, load types and user-side power consumption environment in different scenarios are studied. Determine the appropriate voltage level for various scenarios, the connected source terminal, energy storage terminal, and grounding method. On the premise of considering the user-side scenarios of typical DC applications, based on different power grid structures and operation modes, the optimal network topology relationship is studied, and a multi-scenario typical DC network topology architecture suitable for urban construction is constructed.