基于新息图的动态状态估计研究

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1、DISSERTATIONFORMASTERDEGREETHESISDYNAMICSTATEESTIMATIONINCORPORATINGINNOVATIONGRAPHKalpaMohanSotiHarbinInstituteofTechnologyJune,2006ClassifiedIndex：TM76U.D.C.:621.31DISSERTATIONFORMASTERDEGREETHESISDYNAMICSTATEESTIMATIONINCORPORATINGINNOVATIONGRAPHCandidate:Supervisor:Academ

2、icDegreeAppliedfor:Speciality:Affiliation:DateofDefend:KalpaMohanSotiProf.ZhouSuquanMastersinEngineeringPowerSystemandItsAutomationDept.ofElectricalEngineeringJune,2006Degree-Conferring-Institution:HarbinInstituteofTechnology国内图书分类号：TM76国外图书分类号：621.31工学硕士学位论文基于新息图的动态状态估计研究硕士

3、研究生：康福导师：周苏荃申请学位：工学硕士学科、专业：电力系统及其自动化所在单位：电气工程系答辩日期：2006年6月授予学位单位：哈尔滨工业大学HarbinInstitutionofTechnologyMastersDegreeThesisAbstractDetectionandidentificationofanomaliesinpowersystemstateestimationhasbeenachallengedtotheresearchers．Manydebuggingprocedureshavesuggestedinthestatee

4、stimationliteraturebutallproceduresaresufferedfromsomekindoflimitation.Thereforetoovercomethelimitationinthedebuggingprocedureanewhybridapproachisproposedinthisthesis.Amongthevariousschemes,innovationgraph(IG)basedtopologyerrorandsuddenloadchangediscriminationschemeavoidingth

5、einfluenceofbaddataandbaddataandsuddenloadchangediscriminationschemebasedonforecastingaddedstateestimation(FASE)arethefoundationoftheproposedmethod.TheproposedHybridDynamicStateEstimation(HDSE)scheme,whichincorporatesinnovationgraphintodynamicstateestimationforthedetectionand

6、diagnosisofanomaliesdatagatheredduringrealtimepowersystemmonitoringinanintegratedway.Thediagnosisaboutwhichtypeoferrorsisactuallypresentsinthemeasurementdatasetiscarriedouttakingintoaccounttheresultsofinnovationgraph,normalizedinnovationandresidualtest.Numericalresultsobtaine

7、dbysimulationstudiesusingtheproposedestimatorarepresentedanddiscussedforvariouspracticaloperatingconditionsinthethesis.Baddata,topologyerrorandsuddenloadchangesinthesystemoperatingpointsaretakenasacauseofanomaliessuspicion.Suspicionofanomaliesisdetectedbytheinconsistenciesbet

8、weentherecentmeasurementandforecastedvalues.Theseinconsistenciesappe