電力系統(tǒng)廣域阻尼控制研究

1、南京師范大學(xué)碩士學(xué)位論文電力系統(tǒng)廣域阻尼控制研究姓名：盧旻申請學(xué)位級別：碩士專業(yè)：電氣工程；電工理論與新技術(shù)指導(dǎo)教師：吳華仁20110509AbstractWiththeapplicationofnation—widepower鰣dinterconnectionandChinaspowert瑚smissionf沁mtheWesttotheEast，anationalhybridAC／DCpowergridwillbef0冊edinthe

2、futureLow—frequencyoscillationhasbecomeanimportantfactorthataffectingtheinterconnectedpowergrids’stabilityandlimitingthepowertransmissionabilityoftheinterareapowersystemConventionalpowersystemstabilizer(CPSS)Candamplocal

3、modelowfrequencyoscillationeffectivelybutnottheinterareamodeoscillationsduetolocalinformationaloneAtpresent，thedevelopmentofsynchronousphasormeasurementstechnologyandwide—areameasurementsystemconprovidenearlyeveryrealtim

4、esignalsofthepowersvstemunderthesametimeframe，thoserealtimesignalsincludingpoweranglesandrotorspeedsofgenerators，voltagevectorsofthebusandtheactivepowerofthetielinesinthewholepowersystemWiththeprogressofthewideareameasur

5、ementsystem(WAMS)technologywegetnewopportunitytodampinglow’frequencyoscillationTheimpactoftimedelaysintroducedbysynchronousphasormeasurementunitsignaltransmissionandprocessinginwideareameasurementsystemshouldbeconsidercd

6、Becausethetimedelayinvolvedcoulddeterioratethepowersystem’Sstabilitv’sotheeffectivedevicestoalleviatetheeffectofthetimedelaymustbeconsideredinthepowersystemstudiesInthispaperthedesignofWADCisconsideredFirstly，thecurrents

7、tatusoflowfrequencyoscillationstudyanddampingcontrolofpowersystemISrecognizedSecondlV，memodelofinterconnectionpowersystemisintroduced，andthedesignmethodofWADCisrecommendedlastlyAmethodfordesigningawideareadampingcontroll

8、er(WADC)ofexcitationsystemfordampinginterareapoweroscillationsconsideringsignalstransmissiondelayandclosed—looppowersystemsispresentedWADCusingwide。areameasurementssignalofremotegenerationsasinputthenPSSusingtheoutputofW

9、ADCasitsinputcaneffectivelydampinterareaoscillationTheeffectivenessoflagcompensationofawideareadampingcontroller(WADC)foroffsettingthelongtimedelayofwideareasignalsisanalyzedFirstlytheleadorlagcompensationandtimeconstant

10、sareselectedaccordingtothelagangleofwideareasignalcausedbytimedelaySecondly1hnsfo瑚theselectionofthegainofWADCandtimeconstantofintotheoptimizationofobjectivefunctionusingBCC(bacterialcolonychemotaxis)andPSO(ParticleSwarmO