第60卷第6期2023年6月15日电测与仪表ElectricalMeasurement&InstrumentationVol.60No.6Jun.15,2023基于测量不确定度理论的电能计量装置整体误差性能评估与控制研究何培东',张扬帆',黎小军",邓舒予",王欢²,刘刚1(1.国网四川省电力公司计量中心,成都610045;2.中国电力科学研究院有限公司武汉分院,武汉430074)摘要:电能计量装置的准确性关系贸易结算的公平公正、电网运行的经济安全。现有相关技术标准规定了电能表、互感器的误差控制要求,但对由电能表、互感器及其回路组成的电能计量装置的综合误差性能指标,尚缺乏准确量化的定义。文中以测量不确定度理论为基础,论述了不同典型条件下电能计量装置的各标准不确定度分量、合成标准不确定度以及整体扩展不确定度的计算评定方法与允许综合误差限值的确定方法,为电能计量装置综合误差性能评估,以及电能表、互感器装出前的优化组合选配提供技术依据与方法。关键词:电能计量装置;整体测量不确定度;综合误差;典型条件D0I:10.19753/j.issn1001-1390.2023.06.026中图分类号:TM933ResearchonoverallerrorperformanceevaluationandcontrolofelectricenergymeteringdevicebasedonmeasurementuncertaintytheoryHePeidong',ZhangYangfan',LiXiaojun',DengShuyu',WangHuan’,LiuGang'(1.MeteringCenter,StateGridSichuanElectricPowerCompany,Chengdu610045,China.2.WuhanBranch,ChinaElectricPowerResearchInstitute,Wuhan430074,China)Abstract:Theaccuracyofelectricenergymeteringdevicesisrelatedtothefairnessandjusticeofthetradesettlementandtheeconomicsecurityofpowergridoperation.Publishedrelevanttechnicalstandardshavespecifiedtheerrorcontrolre-quirementsofelectricitymetersandtransformers,whilethereisstillalackofaccurateandquantitativedefinitionofthecomprehensiveerrorperformanceindexfortheelectricenergymeteringdevicescomposedofelectricitymeters,transform-ersandtheircircuits.Basedonthemeasurementuncertaintytheory,thispaperdiscussesthecalculationandevaluationmethodsofstandarduncertaintycomponent,combinedstandarduncertainty,andtheoverallexpandeduncertaintyofelec-tricenergymeteringdevicesunderdifferenttypicalconditionsandthedeterminationmethodsoftheallowablecomprehen-siveerrorlimit,whichprovidestechnicalbasisandmethodforthecom...