Research and Application of Distribution Network Planning Based on Digital Twinning Technology

To satisfy the requirement of electric distribution grid planning brought by the forward annual electricity consumption growth and power grid expand, to determine where, when, and which type of substations, lines or distributed electric power generation device will be built. The future distribution network planning must adopt electric power flow, dynamic change of load and new distributed power generation in various directions, and build an electric distribution grid with grid structure. The results of distribution network planning has a huge impact on the operation efficiency of the power grid, the safety of electricity use, and the allocation of asset investment. This paper uses digital twinning, advanced computing and other technologies to divide and evaluate the scope of power supply, load characteristics, and user demand, and the scale of power facilities. With the power supply reliability demand as the core, it plans and builds a target network framework with high voltage quality, reasonable structure, flexible operation, and unified grid division standards, effectively giving play to the key role of planning in the construction and operation of distribution networks.