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随着电动汽车（electric vehicles,EVs）的不断普及，含光储的快速充电站逐渐成为配电网的重要负荷类型，光储充一体的快速充电站的运行状态将影响配电网的运行状态。本文针对光储充接入的配电网问题，通过柔性互联配合储能实现配电网的潮流分布的调整，提出了一种考虑配电网结构演化的光储充柔性互联规划方法。本方法分成两层实现规划，上层基于蒙特卡洛模拟实现配电网结构演化的模拟，下层以配电网的运行成本为优化目标实现柔性互联装置的规划。首先，以快速充电站（fast charging station,FCS）、储能（energy storage,ES）和软开关（soft open point,SOP）为研究对象，建立快速充电站充电负荷模型，建立储能充放电模型，建立SOP互联装置功率交互模型。其次，考虑配电网的负荷需求，构建基于节点度和联络距离的配电网结构演化概率模型。再次，建立以配电网运行费用为优化目标的SOP柔性互联规划模型，进而构建双层求解算法，上层算法基于蒙特卡洛模拟实现配电网结构演化的模拟，从而确定配电网的演化结构；下层算法基于上层演化结构，考虑充电负荷、储能的充放电情况和SOP的功率交互情况，对SOP的柔性互联位置做出规划。最后，基于IEEE 33节点算例，对本文所提方法进行了验证，仿真结果表明，当采用本文所提方法时，配电网的运行成本、有功网损和电压越限情况得到了改善。
Abstract：With the continuous popularization of electric vehicles(EVs),fast charging stations(FCSs)integrated with photovoltaic and energy storage gradually become an important load type of the distribution network.The operation status of integrated FCSs with photovoltaic energy storage and charging will affect the operation status of the distribution network.Aiming at the problem of the distribution network,this paper realizes the adjustment of the power flow distribution of the distribution network through flexible interconnection in cooperation with energy storage.And a flexible interconnection planning method is proposed for photovoltaic,energy storage and charging considering the structural evolution of the distribution network.This method realizes the planning in two layers.The upper layer realizes the simulation of the structural evolution of the distribution network based on Monte Carlo simulation. And the lower layer realizes the planning of the flexible interconnection device with the operation cost of the distribution network as the optimization objective.Firstly,taking the FCS,energy storage(ES)and soft open point(SOP)as the research objects,a charging load model of the FCS,a charging and discharging model of the energy storage,and a power interaction model of the SOP interconnection device are established.Secondly,considering the load demand of the distribution network,a probability model of the structural evolution of the distribution network based on the node degree and the connection distance is constructed. Thirdly,an SOP flexible interconnection planning model with the operation cost of the distribution network as the optimization objective is established.Then a two-layer solution algorithm is constructed.The upper-layer algorithm realizes the simulation of the structural evolution of the distribution network based on Monte Carlo simulation,so as to determine the evolution structure of the distribution network.The lower-layer algorithm makes a plan for the flexible interconnection location of the SOP based on the upper-layer evolution structure,taking into account the charging load,the charging and discharging conditions of the energy storage,and the power interaction conditions of the SOP. Finally,the method proposed in this paper is verified based on the 33-node system.The simulation results show that when the proposed method in this paper is adopted,the operation cost,active power loss and voltage violation situation of the distribution network are improved.
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基本信息:
DOI：10.20097/j.cnki.issn1007-9904.240508
中图分类号:U491.8;TM715
引用信息:
[1]候承昊,闫鹏飞,王启民,等.考虑配电网结构演化的光储充柔性互联规划方法[J].山东电力技术,2026,53(01):56-65.DOI:10.20097/j.cnki.issn1007-9904.240508.
基金信息:
国网山东省电力公司科技项目（520611240005）~~
2026-01-25
2026-01-25