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ID:37038757
大小:5.23 MB
页数:145页
时间:2019-05-20
《含最优潮流的安全约束机组组合问题--有效不等式和外逼近的模型方法研究》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、AbstractSECURITY-CONSTRAlNEDUNITCOMMITMENTWITHOPTIMALPOWERFLOW——STUDYONMODELSANDAPPROAOHESFOR、/:ALIDINEQUAL
2、TIESANDOUTERAPPROXIMATIONABSTRACTEnergyandenvironmentarethebasicconditionsforhumansurvivalanddevelopment.Atpresent,thereductionofenergyconsumptionandpollutantdis
3、chargehasbecomeaworldconsensus.Chinesegovernmentissuedthe“AdministrativeMeasureonEnergyConservationandGenerationDispatch(TrialImplementation)”in2007,inwhichitaimsattheenergyconservationandenvironmentalprotectionbyreformingthecurrentpatternofgenerationdispatchundertheco
4、nditionofsecureandstableoperationofpowersystemandreliableandcontinuouspowersupply.Underthisbackground,itisofimportanttheoreticalandpracticalsignificancetostudytheoperationanddispatchofpowersystemindepth.Basedonthevalidinequalities(VIs)andouterapproximationmethod(OAM)in
5、mathematicalprogramming,thisthesisaimstostudythemodelsandalgorithmsforunitcommitment(uc)andsecurity-constrainedunitcommitmentwithoptimalpowerflow(OPF-scuc)ofpowersystem.VIsarelinearinequalities.Vlscanefficientlyreducethefeasibleregionofthecontinuousrelaxationofmixedint
6、egerprogrammingandcantightenthecontinuousrelaxationwhenVIsareaddedtothecontinuousrelaxationascuttingplanes.BydoingSO,theoptimalsolutioncorrespondingtOtheintegervariablesofthetightenedcontinuousrelaxationcanapproximatetheoptimalsolutionoftheoriginalmixedintegerprogrammi
7、ngbetter.Asadecompositionmethod,OAMdecomposesthemixedintegernonlinearprogramming(MI—NLP)intoasequenceofmixedintegerlinearprogramming(MI—LP)masterproblemsandnonlinearprogramming(NLP)sub—problems.OAMsolvestheMI—NLPbyalternatelysolvingtheMI—LPmasterproblemsandtheNLPsub—pr
8、oblems.whichcanreducethecomputationalburdeninsolvingtheMI—NLP.ThisthesisproposesnewalgorithmsbasedonVIsforUCandOPF-SCUCrespectivelyandnewalgorithmsbasedonOAMforUCandOPF—SCUCrespectively,allofwhichobtaingoodnumericalresults.Thisthesiscontains8chapters.Chapter1addressest
9、heintroduction.Themathematicfoundationsaredescribedinchapter2.Chapter3tochapter7isdevotedtothemainworks.Theconclusion
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