基于分岔理論的交直流輸電系統(tǒng)電壓穩(wěn)定性研究.pdf

1、上海大學碩士學位論文基于分岔理論的交直流輸電系統(tǒng)電壓穩(wěn)定性研究姓名：陳鴻煜申請學位級別：碩士專業(yè)：測試計量技術及儀器指導教師：曹家麟楊秀20080101上海大學碩士學位論文ABSTRACTAspowersystemsiIl011rco咖向了become1嘲昏erscaleandhaVemoreg脅耐ingcapacity姚lsIIlisSionoflaFge鋤omItsofpoweroVerlongdistanc偽觚dint蝴nnect

2、ionbetw餓mre西onalpower鰣dshaVebecomea協(xié)mdHi曲、向ltageDirectCllrrent(HVDC)仃觚sⅡlissionsystemllasbe鋤usedwiddyinourcouIltrywimitsadⅧltagesof仃獅跚：1issionofl蝣e鋤∞untsofpoweroV盯longdistaIlc懿，嬲ynctll0nouslinkbetweeIltwoACsystemsandtbea

3、bilit)rt0瑚pidConl∞1Howev％Ⅱlen蹦矧onb咖eeIlHVDCsystems趾dACsystemsc觚causem鋤yproblems，suI出嬲eleC仃D—mechaIlicaloscillatiomsubsyIlclllonousosCillation(SSO)鋤dh鋤onicinstabili壩wIlichwouldhaveadVerseinnu％ce0ntlleop耐ionofpowersysteIns

4、ThestIldyoftheseproblemscallnotoIllyimprove0urnleoreticalhowledgeaboutHVDC，butalsopr0、，ideinlportalltins仇lCtionfor0perationofa咖a1HVDCprojectsIntllisnlesis，tllebi如rCationtlle0巧ofnoIdineardyIlaInicsis印plicdintllerese砌i11Vo

5、ltage曲出ilityofACsystem，HVDCsystemandAC／DCinl缸conne：ctionsystem，謝也eig鉍V如emethod，rootlocusmethod鋤dtiIIledomainsilllu】ation，鋤dmeco劬rolmodesfortlleiInprov鋤entofVoltage鼬il時areproposed11lemain鯽塒butioIlsinthistllesisare髂follows

6、：Firstly，basedonbi缸cationme0嘞tllcvoltagestabilityofACsystemisstIldiedwi廿lsin哲epar鋤eters鋤dmulti—parametefsbi如rcationmetIlodTheefrcctofdi佰brentgeIleratormodelonmebi如rcationandotllerkeyparamctersarestlldiediIldctailTheresul

7、tsareValidatedbytime_domainsimulationSecond，tllebi如rCationanaly甄sforACsy毆em、衍thstaticVarcoII】lpensator(SVC)istal【en，andsomenewresultsareobtainedn愴resultsshowthatSVCcoulddelayHopfbi觚ationandsaddlenodebi觚aitonpoint觚deIl：Im

8、cevoltages協(xié)bili夠111erefore’itisessentialt00ptimizes)，Iltheticallythedesi筍s鋤dinstalmentsofmeFACTScon們llersbytakingacI洲吼tofalln圮e毹cts鋤柏ducedbyth鋤onsystembi如rcatioIlsnirdlymebi缸cationⅡ1eo巧iscXtelldedt0AC／DCparalleledsyst鋤co