考虑储能损耗的水光充储配电网节点碳排放特性分析  

ANALYSIS FOR NODE CARBON EMISSION CHARACTERICS OF DISTRIBUTION NETWORK WITH HYDRO-PV-EV-ESS WITH CONSIDERING ENERGY LOSS OF ESS

作　　者：龙川 韩宇奇 王湘 叶圣永 杨新婷 鲁宗相[2] Long Chuan;Han Yuqi;Wang Xiang;Ye Shengyong;Yang Xinting;Lu Zongxiang(State Grid Sichuan Economic Research Institute,Chengdu 610041,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]国网四川省电力公司经济技术研究院,成都610041 [2]清华大学电机工程与应用电子技术系,北京100084

出　　处：《太阳能学报》2025年第3期235-244,共10页Acta Energiae Solaris Sinica

基　　金：国家电网有限公司科技项目(5400-202326209A-1-1-ZN)。

摘　　要：针对现阶段配电网各节点碳排放特性不清晰的问题,以含有分布式小水电和分布式光伏等分布式发电、充电负荷和储能系统的水光充储配电网为研究对象分析配电网节点碳排放特性。首先根据碳排放流与潮流的耦合关系,提出基于配电网潮流计算的碳排放流计算方法。在此基础上针对储能系统充放电的损耗对应产生碳排放的问题,建立储能系统碳排放模型,提出将储能损耗均摊到储能放电量的计量方法。最后以典型水光充储配电网为算例,采用碳排放流计算方法分析不同节点碳势和碳排放时空分布特性,分析分布式小水电、分布式光伏、储能接入和不同电动汽车充电策略下的配电网节点碳势和碳排放分布情况,揭示分布式小水电、分布式光伏、储能接入和不同电动汽车充电策略对碳排放的影响机理。In view of the current problem of unclear carbon emission characteristics of each node in the distribution network,this paper takes the distribution network with hydro-PV-EV-ESS as the research object to analyze the node carbon emission characteristics.First,according to the coupling relationship between carbon emission flow and power flow,a carbon emission flow calculation method based on distribution network power flow calculation is proposed.On this basis,in order to solve the problem of carbon emissions caused by the loss of energy storage systems,a carbon emission model of energy storage systems is established,and a measurement method is proposed to evenly allocate energy storage losses to the amount of energy storage discharge.Finally,a typical hydro-PV-EV-ESS distribution network is used as a calculation example,and the carbon emission flow calculation method is used to analyze the carbon potential of different nodes and the spatiotemporal distribution characteristics of carbon emissions.The node carbon intensity and carbon emission distribution of distribution network with distributed small hydropower,distributed photovoltaic,energy storage system and different electric vehicle charging strategies were analyzed and the impact mechanism of carbon emissions is revealed.It has a guiding role in the low-carbon operation of future distribution networks.

关 键 词：分布式发电 配电网 碳排放 配网潮流 储能损耗 

分 类 号：TM71[电气工程—电力系统及自动化]