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1、NewPowerQualityIndexinaDistributionPowerSystembyUsingRMPModel++++++SoonLee,Jung-WookPark,Member,IEEE,andGaneshK.Venayagamoorthy,SeniorMember,IEEE+Electro-MechanicalResearchInstitute,HyundaiHeavyIndustriesCo.,LTD.102-18Mabuk-dong,Giheung-gu,Yongin-si,Gyeonggi-do446-716,KoreaPhone:+82-31-289-52
2、28,Fax:+82-31-289-5250E-mail:soonlee@hhi.co.kr++SchoolofElectricalandElectronicEngineering,YONSEIUniversity.C225,134Sinchon-dong,Seodaemun-gu,Seoul120-749,KoreaPhone:+82-2-2123-5867,Fax:+82-2-393-7842E-mail:jungpark@yonsei.ac.kr+++Dept.ofElectricalandComputerEngineering,MissouriUniversityofSc
3、ienceandTechnology,132EmersonElectricCo.Hall,1870MinerCircle,MO,65409-0249,USA.Phone:+1-573-341-6641,Fax:+1-573-341-4532E-mail:ganeshv@mst.eduAbstract—Inthispaper,anewpowerqualityindex(PQI),customersand/orutilitieshavebeenestablishedintheIEEEwhichisdirectlyrelatedtothegenerationofdistortionpo
4、werstandard519[1]andintheIEC-61000-3standard[2].fromnonlinearharmonicloads,isintroducedtodeterminetheirHowever,theselimitsarebasedontheconventionalpowerharmonicpollutionrankinginadistributionpowersystem.Thequalityindicessuchastotalharmonicdistortion(THD),whichelectricloadcompositionrate(LCR)a
5、ndthetotalharmonicdetermineshowmuchthewaveformisdistortedwithhigh-distortion(THD)fortheestimatedcurrentsoneachharmonicfrequencyharmoniccomponents.TheTHDregulatestheloadareusedtodefinetheproposedPQI.Thereducedharmonicpollutionofeachload.But,itisinsufficientformultivariatepolynomial(RMP)modelwi
6、thone-shottraininganalyzingtheeffectsofpollutedloadsonanoverallpowerpropertyisappliedtorealizethePQI.Then,therankingofsystemwiththeonlyTHDfactor.Therefore,anewpowerdistortionpowerforeachnonlinearload,whichhaveadversequalityindexisnecessarytodealwiththisissue.Also,severaleffectontheentiresyste
7、m,isdetermined.Itisprovedthatthepowerqualityindicesandmeasurementmethods[3]-[4]haverelativerankingbasedonthePQImatchesthatonthedistortionbeenreportedwiththeanalysisofdistortedcurrentandpowercomputeddirectlyfromeachharmonicload.voltagewaveform
