150W PT功率變換器的穩(wěn)態(tài)模型與試驗裝置.pdf

1、北方工業(yè)大學碩士學位論文150WPT功率變換器的穩(wěn)態(tài)模型與試驗裝置姓名：張曉強申請學位級別：碩士專業(yè)：電力電子與電力傳動指導教師：張衛(wèi)平20070525北方工業(yè)大學碩士學位論文TestdeviceandsteadystatecircuitmodelforPTpowerconverterofoutputpower150WAbstractThepiezoelectrictransformer∥I’)isallelectromechanica

2、ldevicethattransferselectricalenergythroughthemechanicalvibrationIthasthefeaturesofhighvoltagegainllighpowerdensitycompactsizeandnoelectromagneticnoiseSinceitwasproposedinthe1950s，quiteafewapplicationshavebeendevelopedPT

3、isemployedeffectivetominiaturizeandlowertheprofileofpowerconverterapplyinginthefieldofelectronicpowerThereforcthecorrelativedevelopmentofnewtechnologyofpowerconverterhasbecomeanimportantsearchareaDuringthestudyingofthePT

4、powercenvelteritisimportanttoestablishaste毹IystatecircuitmodelofthePTpowerconverterAlthoughfewgoodresultsofthisissuehavebeenreported；andalmostnoanalyticmeIllodshavingbeendevelopedWeputforwardasteadystatecircuitmodelandde

5、signatestdeviceforPTpowerconverterofoutputpower150WthoughthethcoreficalanalysisAtthebeginningofthethesis，thesignificanceofthisprojectisdiscussedandtheaimoftheworkisalsoexpatiatedclearlyInchapterII，thefundamentalknowledge

6、ofpiezoelectricmaterialaswellastheoperationprincipleandequivalentcircuitmodelofPTarereviewedandthedesignmethodofmaincircuitforPTpowerODnv(：TterhasbeenputforwardSoanearcontroltechnologynamelynarrowbandcontrolisproposedbyi

7、nvestigatingtheelectriccharacteristicandtheworkingfeatureofPTInchapter[I]，accordingtofundamentalwaveanalysisofpowerresonantconverter，steadystatecircuitmodelofpowerresonantconvertel“aregivenoutSothatthesteadystatecircuitm

8、odelofPTpowerconverterwhichisfundamentalforitssmallsignalmodelingisdeducedInchapterW，applyingvoltagecontrolloop，atestdeviceforPTpowerconverterofoutputpower150Whasbeenmadeupanddesignpro毋amincludendNvoltagecontrolloop，PFMa