H橋級聯(lián)式SSSC主電路拓?fù)浞治黾翱刂撇呗匝芯?pdf

1、分類號：TMs76學(xué)校代碼：10079密級：么而H橋級聯(lián)式SSSC主電路拓?fù)浞治黾翱刂撇呗匝芯?申請華北電力大學(xué)工學(xué)博士學(xué)位論文)培養(yǎng)單位：一級學(xué)科：專業(yè)名稱：研究生：指導(dǎo)教師：華北電力大學(xué)北京電氣工程電力系統(tǒng)及其自動化姜旭肖湘寧教授2007年5月摘要AbstractS枷cSyn幽nousSeriesC蚴pellsato“SSSC)plays鋤imp叫鋤troleinimpro啊ngtllesyst鋤stabilityandillcre

2、勰ingtIleavailable咖sf酹capabilityfort11epo、versyst鋤TIisdiss豇倒oIl，湖bin抽gwi廿lmeNationalNatufalandSdeIlceF饑mdationofChina(StI|dy∞modulationp—ncipleofSSSCbasedonnononIloPronala∞柑in砒es鋤dresaIfchontllebalallceofDCvoltagc)，d唧lys眥

3、iedonthemailIcircuitmattl啪aticalmodels，modlllaHons打ate百鶴andconnDlmetllods鋤dso∞Themaintopologyresea“Ihistlle矗md撇ental如r鋤aly西ngtllecharacteristicofH塒dgcc雒cadeSSSCT1lisdi跖ertationoofnpa捌sOmedi虢徹1tcouplcdcircuitsandmodesofc0

4、衄ectionofinvater，孤dcOncludedthatHbridgecascadetopoloPⅣisapplicableformeSSSCAlsotlleconceptofhnpedanceC0mpensad∞D(zhuǎn)omaill，鋤dquasisteadym劬鋤a廿calmodelofoutputvolta霉eweregivenfirsnyB船ed伽mesewodcamctllodforselcctingtlleDCcapadt

5、aIlcewasdeduccdAlsonlela增est印dyn鋤icphasor如州dofHbfidgcc私cadeSSSCwasexplainedModuladons跏e畫esisel鋤altaryfbra出e“ngtlleSSSCconhDl矗刪onBased伽tlleN㈣rthog‘malKLcoordinatormlllti1evelSVPWM，觚improvedIinevolta2emodulati蚰methodw恤chis

6、moreconciseandd“l(fā)edwas西v鈕AIld鋤impro刪sinmephasemodulationalgorimmfors”砌鰣calsyst鋤andagen訓(xùn)izodmodulationmcthOd衙t11feephase刪：ls”Il】me缸calsystemwereproposcdAlsotheconceptofPWMstaticmodulation鋤r(PwMSME)w鷂first西vellThecalclllat

7、i∞ofPwMSMEw鶴deduccdqu鋤titiveIyAndtheh猢onicfe殍1l喇tiesofdis嫡butionofHbrid窘ecascadeSSSCbasedoncarrierph嬲estliningSPWMw勰趾alyzcddetailedlyThebal鋤ceandstabilityofDC∞pacitorvoltagearedecisivefbrt11eno咖alope瑚舡∞ofHbridgcc嬲cadcdSS

8、SChlthispapcr，tllemechallismsofimbal趾cea11dinstabilityofDCvoltagesarequalitativelyanalyzod丘螄tlleaspectof衄ergydis缸bution鋤dgettingtlleconclusio璐thatmemaincircuitp硼鋤ete倦，DCvolta駑evalue觚dmodlll砒ionst阮tcgyallcana仃bctDCvoltage

9、sbalan∞：ontheomerh鋤d，tlleac咖ulati∞ofeIla譬yimbalaIlceandtlleefrorofdctectioncanfesIlltillDCvoltagesinstabilityAccordingt0t|leid鼯OfhierarchycoIl仃Dl，the‘叮hr∞LinesOfDef抽cc“con打olsbⅢegyofDCvolta窖鶴bal姐ce柚dst曲ilityw舔6培tproposed

10、，whichconsistsofmodulati∞sn砒egycalledCMDCBSⅥ’WM鋤dstabilityconⅡols打ate緲Alsothecon打oIs嘲e西esofconstantresist孤lccandcons觚powerwiⅡltheoutputfilte塔andwithoutfilte埽weredesi辨edundertheno眥alop剃叫conditionand址m咖alope瑚tionconditionA

11、se鯽％tandvariablestmctIlfeBangbangcontroll盯OfSSSCwas西venfort他systcIIl仃ansientsta_bilitySimulaIionshowstllatsSSChas趾advanta擘rconttlee圩bctsofpow盯oscillationd鋤pin辱Andthespecddi行蝴lce鋤dmepow盯ofline勰tllei11putsig皿alweresimulatc

12、dAtlasttheselfexcitationstanllpchargeeIlcrPⅣs仃ategyofHbridgeC舔cadeSSSCwe∞西venal∞Thesmallst印RTDSsimulationmodelofH小rid盛ec豳cadeSSSCw鶴firstsetupinthestandardfoI|rmachines粕dt、v0撇systemsSomekeytcchnicalproblemsOfsmatlstepsilI

13、lulationwerepoimedoutAlsotlleprototypeofSSSC砸ingttle刪versaIconvenerw勰built，柚dthecontmllerofSSSC、v鶴realizedllsingtlleDSP柚dFPGAnecxperimentaIresultssho、vntllecorrectnessoftllecon汀olmethodsandmoduladons蚴e西esKeywords：SS8C，Hb