第44卷第7期2023年7月电力建设ElectricPowerConstructionVol.44No.7Jul.2023http://www.cepc.com.cn基金项目:国网甘肃省电力公司科技项目(52273020000B)电池储能电站替代变电站升级的优化决策配置方法张中丹,皮霞,杨德州,吕金历(国网甘肃省电力公司经济技术研究院,兰州市730050)摘要:在大规模新能源接入及负荷增长情况下部分变电站存在容量不足问题,为确保电力公司运行经济性,文章对比分析配置储能电站及变电站升级扩容两种方案。首先考虑方案经济性、可靠性及环境指标建立综合评价指标体系进行评估,其次以最大化配置储能效益为规划目标,考虑储能系统全寿命周期成本与提升电网运行可靠性、延缓电网升级改造及降低配电网运行网损三部分效益建立储能成本-效益模型,然后采用改进进化算法进行仿真确定储能系统的配置容量,并通过评价体系得到最佳规划方案。结果表明:在当前电网运行水平和模式下,配置储能系统可以延缓电网升级改造,提升电网整体运行水平,可为后续大规模新能源并网应用储能系统平滑新能源出力、延缓电网升级改造提供规划参考。关键词:配电网规划;储能系统;变电站扩容;可靠性;容量配置OptimalDecision-makingConfigurationMethodforBatteryEnergyStorageStationtoReplaceSubstationUpgradesZHANGZhongdan,PIXia,YANGDezhou,LÜJinli(EconomicandTechnicalResearchInstituteofStateGridGansuElectricPowerCompany,Lanzhou730050,China)ABSTRACT:Withtheintroductionoflarge-scaleenergysourcesandincreasingloadgrowth,somesubstationsmayfacecapacitylimitations.Toensuretheoperationaleconomyofpowercompanies,thisstudyundertakesacomparativeanalysisoftwoschemesforconfiguringenergystoragepowerstationsandupgradingandexpandingsubstations.First,weconsideredtheeconomic,reliability,andenvironmentalindicatorsoftheschemetoestablishacomprehensiveevaluationindexsystem.Second,tomaximizetheallocationofenergystoragebenefitsastheplanninggoal,weconsiderthelifecyclecostoftheenergystoragesystemandthebenefitsofimprovingpowergridoperationreliability,delayingtheupgradingofthepowergrid,andreducingoperatingnetworklossinthedistributionnetworktoestablishanenergystoragecost-benefitmodel.Subsequently,animprovedevolutionaryalgorithmwasutilizedinsimulationstoasc...