交直流混合配电网互联中直流系统的优化配置

Optimal Configuration of DC System in the Interconnection of Hybrid AC/DC Distribution Network

随着现代电力系统的发展,直流配电方式越来越被业界所瞩目。针对交直流混合配电系统中的供电经济性问题,设计了采用交直流混合供电的典型配电网结构,建立了直流变换器与相关馈出线容量的优化配置及运行优化模型,分析了不同负荷构成条件下的交直流混合配电与交流配电模式的经济性,可以对未来交直流混合配电网建设起到参考作用。

Along with the development of modern power system,the technology of DC distribution is attracting more attention. Considering the economic efficiency of power supply in a hybrid AC/DC distribution system,a typical structure of distribution network with hybrid AC/DC power supply is designed. A model of optimal configuration of capacity and optimal operation for a DC converter and its associated feeders is established,and the economic efficiencies in hybrid AC/DC and AC distribution modes under different load conditions are analyzed. The research in this paper will provide reference for the construction of hybrid AC/DC distribution network in the future.