第51卷第1期2023年2月福州大学学报(自然科学版)JournalofFuzhouUniversity(NaturalScienceEdition)Vol.51No.1Feb.2023DOI:10.7631/issn.1000-2243.22138文章编号:1000-2243(2023)01-0062-07PI控制的故障电弧电流还原装置设计吴万海1,许志红1,2,3(1.福州大学电气工程与自动化学院,福建福州350108;2.福建省新能源发电与电能变换重点实验室,福建福州350108;3.智能配电网装备福建省高校工程研究中心,福建福州350108)摘要:针对故障电弧保护电器动作特性测试的试验周期长、效率低等问题,设计了基于PI控制的电弧电流还原装置.通过搭建Multisim与LabVIEW联合仿真环境对电流还原装置的硬件电路进行仿真,以此验证方案的可行性.同时调试硬件装置进行试验验证,对比原始信号与还原信号的时域、频域特征参数和THD值作为电流还原度指标.试验结果表明,电弧电流还原整体还原度良好,该装置基于原始电弧故障数据给电弧故障检测算法和AFDD产品测试提供了更加真实和便利的测试条件.关键词:故障电弧;PI控制;电流还原;波形特征值中图分类号:TM501.2文献标识码:ADesignofarcfaultcurrentreductiondevicebasedonPIcontrolWUWanhai1,XUZhihong1,2,3(1.CollegeofElectricalEngineeringandAutomation,FuzhouUniversity,Fuzhou,Fujian350108,China;2.FujianProvinceKeyLaboratoryofNewEnergyGenerationandPowerConversion,Fuzhou,Fujian350108,China;3.FujianProvinceUniversityEngineeringResearchCenterofSmartDistributionGridEquipment,Fuzhou,Fujian350108,China)Abstract:Aimingattheproblemsoflongtestperiodandlowefficiencyofarcfaultprotectiondeviceactioncharacteristictest,anarccurrentreductiondevicebasedonPIcontrolisdesigned.Thehard-warecircuitofthecurrentreductiondeviceissimulatedbybuildingtheMultisimandLabVIEWco-simulationenvironmenttoverifythefeasibilityofthescheme.Atthesametime,thehardwaredeviceisdebuggedforexperimentalverification,andthetimedomain,frequencydomaincharacteristicparametersandTHDvalueoftheoriginalsignalandtherestoredsignalarecomparedasthecurrentrestorationdegreeindex.Thetestresultsshowthattheoverallreductiondegreeofarccurrentreductionisgood.Basedontheoriginalarcfaultdata,thedeviceprovidesmorerealisticandconvenienttestconditionsfora...