電力系統(tǒng)低頻振蕩的協(xié)調(diào)阻尼控制研究

1、華北電力大學博士學位論文電力系統(tǒng)低頻振蕩的協(xié)調(diào)阻尼控制研究姓名：馬燕峰申請學位級別：博士專業(yè)：電力系統(tǒng)及其自動化指導(dǎo)教師：顧雪平趙書強20100401華北電力大學博士學位論文摘要iAbstractWithincreaseofthepowersystemsizecomplicatedvarietiesofoperationmodetheproblemoflowfrequencyoscillationisbecomingwse.Thisha

2、vebeenaseriousthreattothesafetystabilityofpowersystemsabigobstacletothepowerexchangebetweenregionstherefeitisimptanttostudythedampingacteristicscodinationsuppressionoflowfrequencyoscillationsinlargescalepowersystems.Base

3、donmodalanalysisthedampingacteristicsmodelidentificationcodinationsuppressionmethodsarestudied.Indertoobtainbetterdampingcontrolbasedontheeigenanalysismethodthedampingconservationdampingtransferlawofpowersystemsareanalyz

4、ed.Tosolvetheproblemofdimensiondisasterthemodelofgeneratsisequivalentlysimplifiedtotheclassicseconddermodelthroughdeducingtheequivalentdampingoftheexcitationsystemsothercontrollersonlowfrequencyoscillationbythecomplextqu

5、emethod.Basedontheseconddermodelbyconsideringfeaturesofpowersystemsusingthemodalanalysismethodofvibrationtheyafasteigenvaluecalculationmethodofelectromechanicalmodesisputfwardtheacteristicsofpowersystemswithunifmdampinga

6、reanalyzed.Thewkestablishesthetheeticalfoundationfdeterminationofthecodinatedampingcontroltargetsoflowfrequencyoscillations.Basedonthelinearizedmodeldampingacteristicsofpowersystemsthecontroltargetofunifmdampingcontrolis

7、established.ThenbasedonthewidelyusedPSStheunifmdampingideathecodinationmethodofPSSparametersisputfward.Inadditiontheregionpoleassignmentmethodisusedtodesigndampingcontrollerswhichplacepolestotheverticalstripregionrealize

8、theapproximateunifmdampingcontrol.Themethodaboveprovidesaneffectivemeansofdesigningthedecentralizeddampingcontroller.AnimprovedmultisignalPronymethodisproposedtoidentifythefeaturesmodeloflowfrequencyoscillations.Usingthe

9、methodtheproblemstochoosetheidentifiedmodelsfromthedifferentidenfiedresultsbasedondifferentmachines’signalstoavoidthedimensiondisasterinlargescalepowersystemstoreprensentthepowerelectronicdevicestheloadbyaccuratemathemat