欢迎来到天天文库
浏览记录
ID:39449833
大小:456.40 KB
页数:71页
时间:2019-07-03
《Thesis - Network reconfiguration for loss reductio in three-》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、NETWORKRECONFIGURATIONFORLOSSREDUCTIONINTHREE-PHASEPOWERDISTRIBUTIONSYSTEMSAThesisPresentedtotheFacultyoftheGraduateSchoolofCornellUniversityinPartialFulfillmentoftheRequirementsfortheDegreeofMasterofSciencebyRayDanielZimmermanMay1992©RayDanielZimmerman1992ALLRIGHTSRES
2、ERVEDABSTRACTPowerdistributionsystemstypicallyhavetieandsectionalizingswitcheswhosestatesdeterminethetopologicalconfigurationofthenetwork.Thesystemconfigurationaffectstheefficiencywithwhichthepowersuppliedbythesubstationistransferredtotheload.Powercompaniesareinter-ested
3、infindingthemostefficientconfiguration,theonewhichminimizestherealpowerlossoftheirthree-phasedistributionsystems.Inthisthesisthenetworkreconfigurationproblemisformulatedassingleobjectiveoptimizationproblemwithequalityandinequalityconstraints.Theproposedsolutiontothisprobl
4、emisbasedonageneralcombinatorialoptimizationalgorithmknownassimulatedannealing.ToensurethatasolutionisfeasibleitmustsatisfyKirchhoff’svoltageandcurrentlaws,whichinathree-phasedistributionsystemcanbeexpressedasthethree-phasepowerflowequations.Thederivationoftheseequatio
5、nsispresentedalongwithasummaryofrelatedthree-phasesystemmodeling.Thesimulatedannealingalgorithmisdescribedinageneralcontextandthenappliedspecificallytothenetworkreconfigurationproblem.Alsopre-sentedhereisadescriptionoftheimplementationofthissolutionalgo-rithminaClanguag
6、eprogram.ThisprogramwastestedonaSunworkstation,givenanexamplesystemwith147busesand12switches.Thealgorithmconvergedtotheoptimalsolutioninamatterofminutesdemonstratingthefeasibilityofusingsim-ulatedannealingtosolvetheproblemofnetworkreconfigurationforlossreductioninathre
7、e-phasepowerdistributionsystem.Theseresultspro-videthebasisfortheextensionofexistingmethodsforsingle-phaseorbal-ancedsystemstothemorecomplexandincreasinglymorenecessarythree-phaseunbalancedcase.BiographicalSketchRayDanielZimmermanwasborninEphrata,PAonDecember17,1965.F
8、ouryearslaterhemovedwithhisfamilytoachickenfarminruralLan-casterCounty,PAwhereheliveduntilhebeganstudyingElectricalEngi-neer
此文档下载收益归作者所有