光储快充站直流接入的FIDN及其功率协调控制策略  

FIDN with DC Access of Photovoltaic-Energy Storage Fast-charging Stations and its Power Coordination Control Strategy

作　　者：陈立阳 兰征 何东 纪岸兵 王海晖 曾进辉[1] CHEN Liyang;LAN Zheng;HE Dong;JI Anbing;WANG Haihui;ZENG Jinhui(College of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,China)

机构地区：[1]湖南工业大学电气与信息工程学院,湖南株洲412007

出　　处：《智慧电力》2025年第3期1-8,共8页Smart Power

基　　金：国家自然科学基金资助项目(52377185)。

摘　　要：为解决光储快充站交流接入配电网引发的变压器重载、网损增大和其自身不合理的能量管理策略导致调峰容量不足等问题,提出一种光储快充站直流接入的柔性互联配电网(FIDN),利用柔性多状态开关(FMSS)实现配电网互联与光储快充站的直流接入。首先,划分出FIDN的4种运行模式,分析每种运行模式下的功率交互情况,在此基础上研究功率协调控制策略。其次,研究光储快充站的能量管理策略,根据储能和电动汽车的荷电状态(SOC)将光储快充站的工作模式划分为5种,并给出每种工作模式下储能和电动汽车的充放电响应顺序。最后,通过MATLAB/Simulink仿真验证了所提FIDN及其功率协调控制策略可有效解决光储快充站接入带来的变压器重载和储能容量不足等问题。To address issues such as transformer overload,increased network losses caused by the AC connection of photovoltaic-energy storage fast-charging stations to the distribution network,and insufficient peak-shaving capacity due to unreasonable energy management strategies,the paper proposes a flexible interconnected distribution network(FIDN) with DC access for the photovoltaic-energy storage fast-charging stations.This network utilizes flexible multi-state switches(FMSS) to achieve distribution network interconnection and DC access for the photovoltaic-energy fast-charging stations.Firstly,the four operation modes of the FIDN are defined,and the power interactions in each mode are analyzed.Based on this,a power coordination control strategy is studied.Secondly,an energy management strategy for the photovoltaic-energy storage fast-charging station is developed.The working modes of the station are divided into five types according to the state of charge(SOC) of the energy storage system and electric vehicles(EVs),and the charging and discharging response sequence of the energy storage system and EVs under each working mode is provided.Finally,MATLAB/Simulink simulations verify that the proposed FIDN and its power coordination control strategy can effectively resolve issues such as the transformer overload and insufficient energy storage capacity caused by the integration of the photovoltaic-energy storage fast-charging stations.

关 键 词：光储快充站 柔性互联配电网 模式划分 功率协调控制 储能荷电状态 

分 类 号：TM732[电气工程—电力系统及自动化]