面向工業(yè)負(fù)荷的SVC數(shù)字調(diào)節(jié)器的研究.pdf

1、分類號UDCI密級I學(xué)號、矽甥參呈z袋￥碩士學(xué)位論文面向工業(yè)負(fù)荷的SVC數(shù)字調(diào)節(jié)器的研究陳貴亮學(xué)科名稱：電力電子與電力傳動學(xué)科門類：工學(xué)指導(dǎo)教師：同向前教授申請日期：20073望童翌蘭查!堡主蘭堡笙圭STUDYONSVCDlGl_rALREGULATORFORJNDUSTRIALLOADSSubject：PowerElectronicsandElectricDriveAuthor：ChenGuiliangSignature：弧6；“以卅

2、Supervisor：ProfTongXiangqianSignature：葡)(灑再擁Date：March2007＼J＼J’AbstractInmordenpowersystem，reactivepowercontrolhasbecomeanecessarymeasuretoensurethepowersystemrealiableandeconomicalSVC(StaticVarCompensator)，duetoitsadvan

3、tageofrapid，ContinuousandindependentcontrolofthreephasereactivepowerhasbecomethebestchoiceofreactivepowercompensatorinpowersystemsupplyingfluctuatingloadsTheelectricalcharacteristicsofindustrialloadsandtherequirementsoft

4、heirreactivepowercompensationtoSVCwereanalyzedfirstlyandthebasicconceptions，causes，negativeeffects，evaluationandsolutionofthreephaseunbalancewerediscussedindetailBasedonthese，thealgorithmsofreactivepowercompensationandlo

5、adbalancingweregeneralized，andanewcontrolalgorithmbasedonsinglephaseinstantaneousreactivepowerwasproposedinthispaperInthisalgorithm，thesinglephaseinstantaneousreactivepowerisdetectedbyHilbertphaseshiftingtransformation，a

6、ndahalfcyclemeanfilterwasadoptedtofilterthefluctuationoftheresultsagainstcurrentharmonicsinthesystemThesimulationresultsverifythatthecompensationeffectswereimprovedsignificantlyForthecomprehensiveapplicationofreactivepow

7、erandasymmetriccompensation，therelationshipbetweenthevalueoftheparameterL，C，thereqirementsofcompensationcapacityandthreephasedegreeofasymmetrywasdeducedtheoreticallyfromsequence—componentsandidealcompensationanalysis，whi

8、chprovidedtheoreticalwarrantytodesigntheparametersofSVCThesimulationresultsindifferentworkconditionstestifythecorrectnessoftherelationshipThemathematicalmodelofSVCsystemwasestablished，thestabilityconditionsofclose100pcon

9、trolsystemwereanalyzed，andtheparametersofP1regulatorwereadjustedAstotheoverallstructure，distributedstructurewasadoptedinhardwaredesign，andSVCexperimentalsystemwasdevelopedTheprinciplecircuitandcontrolalgorithmofSVCcontro

10、lsystembasedonDSPwasdesignedAtlast，theperformancesofthesystemwerefullydetectedthrooghexperimentsandsimulation，andtheadvantagesanddisadvantagesofopenloopandcloseloopcontrolschemeswerecomparedinthispaperTheexperimentalresu

11、ltsindicatethatthehalfcyclemeanfilterCanimprovethecompensationeffects，thedesignmethodofSVCparameterswasfeasible，andtheSVCexperimentalsystemcanrealizethereactivepowercompensationandtheloadbalancingKeywords：SVC，ReactivePow