變結(jié)構(gòu)多TCSC暫態(tài)穩(wěn)定控制器的研究.pdf

1、武漢大學(xué)碩士學(xué)位論文變結(jié)構(gòu)多TCSC暫態(tài)穩(wěn)定控制器的研究姓名：吳磊申請學(xué)位級別：碩士專業(yè)：電力系統(tǒng)及其自動化指導(dǎo)教師：陳紅坤20030401ABSTRACTThyfistorControlledSeriesCompensation(TCSC)isarlimportantcontrolleramongtheFlexibleACTransmissionSystem(FACTS)Byadjustingthetriggerangleofthyr

2、istor，theequivalentreactanceofTCSCCallberegulatedfromcapacitivetoinductivemodecontinuouslyThUS，TCSChastheabilitytocontr01powerflowdamplowfrequencyoscillationandenhancepowersystemstabilityWimthedevelopmentofpowersystem，TC

3、SC’Sapplicationisincreasinggraduallynlccontroller’SdesignapproachofsingleTCSChasbeenpaidmuchmoreattentionbymanyresearchers，however，thecoordinatcdcontrolofmultiTCSC(evenmultiFACTSdevices)usedtobeignoredThereforebasedonVSC

4、(variablestructurecontr01)theoryanapproachofdesigningcontrollerofmulti—TCSCispresentedThemaincontentsisasfollows：Firstly，beginningfromVSCtheories，thepaperdiscussesthebasicschemeofVSCandexplains印plicabilityofVSCinnonlinCa

5、rsystemTwoimportantcharactcristicsofVSCarealSOdiscussed：thestrongrobustnessandchattering。Secondly，thepaperdeduceslineardynamicequationofthepowersystemwithmultiTCSCusingdirectfeedbacklinearizationmethodinwhichnoulineardyn

6、amicequationiSlinearizedbyusingfeedbackmethodandaccuratelinearequationiSobtainedSuchmethodhasovercometheconstraintofconllnonlinearmethodSOthatthecontrollerCanstilloperatevalidlywhensystemstateiSfarfromawayoriginaleqmlibf

7、iumpointBasedontheabovelinearizationapproachandsystemmodel，onetransientstabilitycontrollerisdesignedbyusingdistributedVSCtheories11ledesignedcontrolleriSstronglyrobusttointefferenceinpowersystemandthecontrollingdisciplin

8、aryisdistributedanddecoupledbyusingdirectfeedbackliberalizationmethodForthesakeofveri向ingtheeffectivenessofthepresentedapproachmatlabiSusedtosimulatethecontrollerBycomprisingsimulationreSultsofdifferentstudiedcases，itiss

9、hownthatthecontrollerhavegoodeffectonimprovingtransientstabilityForVSCcontrolleritisnoteasytoavoidchaRefingManykindsofmethodforweakeningchat【efingarcdiscussedAndfuzzyVSCmethodistriedtoweakcachatteringandoneoffuzzyVSCcont