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1、SmartGrid智能电网,2017,7(4),286-293PublishedOnlineAugust2017inHans.http://www.hanspub.org/journal/sghttps://doi.org/10.12677/sg.2017.74032FastDetectingMethodofGridHarmonicPowerfortheTracingofHarmonicSourcesKaiWang1,XiangqianTong2,JianQiang2,LiminWu11QinzhouPowerSupplyBureau,GuangxiPowerGr
2、idCo.,Ltd.,QinzhouGuangxi2SchoolofAutomationandInformationEngineering,Xi'anUniversityofTechnology,Xi'anShaanxithththReceived:Aug.12,2017;accepted:Aug.24,2017;published:Aug.30,2017AbstractTheharmonicpowerdetectioninpowergridisthebasisofharmonicpollutionevaluationandharmonicsourcetracin
3、g.Withthesampledvoltagesandcurrentsonthepointofcommoncoupl-ingofpoweruserswiththegrid,thedefinitionandthecalculationmethodofharmonicpowerwasanalyzed,andafastcalculationmethodofharmonicpowerbasedoninstantaneouspowertheorywasproposed.Thed-qcoordinatetransformationofthethree-phasevoltage
4、sandcurrentsunderharmonicfrequencywascarriedoutfirst,andtheDCcomponentofthed-qaxiswasextractedwithalow-passfilter,thentheamplitudeandflowdirectionofactivepowerandreactivepowerforeachharmonicusedfortracingtheharmonicsourcecanbecalculatedaccordingtotheinstanta-neouspowertheory.Asimulati
5、onmodelofatypicalapplicationsystemisestablishedforhar-monicpowerdetection,andthesimulationresultsverifythecorrectnessoftheharmonicpowerfastdetectionalgorithm.KeywordsInstantaneousPowerTheory,PowerQuality,HarmonicMonitoring,HarmonicSourceTracing,HarmonicPower用于电网谐波溯源的谐波功率快速检测方法１２21王凯，同
6、向前，强健，吴立忞1广西电网责任有限公司钦州供电局，广西钦州2西安理工大学自动化与信息工程学院，陕西西安收稿日期：2017年8月12日；录用日期：2017年8月24日；发布日期：2017年8月30日文章引用:王凯,同向前,强健,吴立忞.用于电网谐波溯源的谐波功率快速检测方法[J].智能电网,2017,7(4):286-293.DOI:10.12677/sg.2017.74032王凯等摘要电力用户的谐波功率检测是配电网谐波溯源和谐波污染评价的基础。本文从电力用户与电网公共连接点的电压和电流取样入手，分析了谐波功率的定义及其检测计算方法，提出一种基于瞬时功率理论的谐波
7、功率快速检测计算方法。对三相电压和电流在谐波频率下进行d-q坐标变换并提取出d-q轴的直流分量，按照瞬时功率理论可计算得到各次谐波的有功功率和无功功率的幅值及流向，根据功率流向可实现电网谐波溯源。建立了典型应用系统的仿真模型，仿真结果验证了谐波功率快速检测算法的正确可行性。关键词瞬时功率理论，电能质量，谐波监测，谐波溯源，谐波功率Copyright©2017byauthorsandHansPublishersInc.ThisworkislicensedundertheCreativeCommonsAttributionInternationalLicense(CC
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