电力系统自动化2026，Vol.50Issue(1)：51-60,10.DOI:10.7500/AEPS20241225001
集成光储中压并网的智能软开关拓扑及其控制策略
Topology and Control Strategy of Soft Open Point Integrated with Photovoltaic and Energy Storage for Medium-voltage Grid Connection
摘要
Abstract
Aiming at the flexible interconnection among renewable energy grid-connected nodes in medium-voltage distribution networks,a soft open point(SOP)integrated with photovoltaic and energy storage for medium-voltage grid connection is proposed.This SOP has the capability to efficiently aggregate photovoltaic and energy storage resources and to improve the uneven distribution of power flow in distribution networks.Firstly,the topological structure of the photovoltaic-battery-hybrid cascaded SOP(PVBH-SOP)is proposed and the topology and modulation strategy of its single-stage isolated cascaded sub-modules are presented.Secondly,an average circuit model of the PVBH-SOP is established to analyze the control principle of its power flow.Then,three operation modes of the PVBH-SOP are described,along with their corresponding control strategies.Finally,a 10 kV/2 MW simulation platform for the PVBH-SOP system is established in MATLAB/Simulink to verify the effectiveness of the proposed PVBH-SOP topology and control strategy.关键词
新能源/配电网/柔性互联/智能软开关/潮流/拓扑/光储Key words
renewable energy/distribution network/flexible interconnection/soft open point(SOP)/power flow/topology/photovoltaic and energy storage引用本文复制引用
WANG Jingyue,ZHU Di,LIU Chuang,SUN Heyang..集成光储中压并网的智能软开关拓扑及其控制策略[J].电力系统自动化,2026,50(1):51-60,10.基金项目
吉林省自然科学基金资助项目(20230101354JC). This work is supported by Jilin Provincial Natural Science Foundation of China(No.20230101354JC). （20230101354JC）
