收稿日期:2022-04-28∗基金项目:南瑞集团科技项目(新一代用电信息采集系统新型终端高级应用APP的研发和应用,524608210041)作者简介:张高山(1987-),男,河南焦作人,硕士,工程师,研究方向为智能用电技术。考虑充电桩最优效率的电动汽车有序充电模型∗张高山,江御龙,刘永春(国电南瑞科技股份有限公司,南京211106)摘要:在电动汽车有序充电过程中,充电效率的评估和优化有助于提升调度模型的精确度。提出一种考虑直流充电桩最优充电效率的电动汽车有序充电模型。首先,分别对直流充电桩中Vienna整流器部分与双有源桥DC-DC部分进行损耗建模,并使用Pareto优化方法求取最优充电效率。然后,以电网运行、电池电量、充电功率和用户行为作为约束条件,构建最优负荷波动率目标函数,并通过粒子群优化方法进行求解。最后以南京城区某大型充电站的夏季负荷历史数据为参考,利用MATLAB软件分析有序充电模型的执行效果,负荷波动率从0.912降低到0.833。实验结果表明,考虑直流充电桩最优充电效率的有序充电模型能较好地降低负荷波动率。关键词:电动汽车;有序充电;Pareto优化;充电效率中图分类号:TP29;TM1文献标识码:ADOI编码:10.14016/j.cnki.1001-9227.2023.01.064OrderlychargingmodelforelectricvehiclesconsideringoptimalefficiencyofchargingpileZHANGGaoshang,JIANGYulong,LIUYongchun(NariTechnologyCo.,Ltd.,Nanjing211106,China)Abstract:Duringorderlychargingprocessofelectricvehicles,evaluationandoptimizationofchargingefficiencyishelp-fulforimprovingaccuracyofschedulingmodel.Inthispaper,withconsiderationofDCchargingpileoptimalefficiency,anorderlychargingmodelforelectricvehiclesisproposed.Firstly,powerlossmodelingofViennarectifierstageanddualactivebridgeDC/DCstageinDCchargingpileisdone.OptimalchargingefficiencyisderivedusingParetooptimizationmethod.Then,theobjectivefunctionofoptimalloadfluctuationrateisestablishedandresolvedbyparticleswarmoptimizationmeth-od.Finally,theproposedorderlychargingmodelisexecutedinMATLABtoolwithhistoricaldataofsummerloadfromlarge-scalechargingstationinNanjingcityasreference.Theloadfluctuationrateisreducedfrom0.912to0.833.Theexperi-mentalresultsshowthattheorderlychargingmodelconsideringoptimalchargingefficiencyofDCchargingpilecaneffectivelyreduceloadfluctua...
