Study on Grid Planning Method Considering Multiple Energy Access

Abstract

Vigorously developing new energy is an imperative for advancing China's energy reform and realizing the transformation of its energy structure. It has important strategic significance. Therefore, the development mainly adopts the mode of "large-scale development, centralized grid connection and load center presentation." To meet the precise demand for new energy output data from power system operation simulation, this will provide the basis for the simulation of large-scale new energy power system operation. Considering the research of power grid planning methods that consider multiple energy accesses, this paper proposes a power system optimization planning method for combined power generation and new energy consumption from wind and solar energy storage. By comparing and analyzing the differences in load characteristics and power output characteristics, we study the impact of new energy consumption. On this basis, based on the objective function of the output power change rate of the combined system of wind and solar energy storage, the ratio of active power deviation rate, the sum of peak and valley slope, and the output power fluctuation rate are constraints, and a multi-energy access grid plan is proposed. Coordinated optimization methods and conducted empirical research on power system optimization planning.The research content of this paper has important engineering guidance significance for the new energy consumption research and power system planning research of cross-regional interconnected power systems in the actual power grid.