EAST极向场电源整流器数字触发器的研究与设计的中期报告-第一文库 | 海量文档资源下载与分享平台

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EAST极向场电源整流器数字触发器的研究与设计的中期报告AbstractThismidtermreportpresentsthecurrentprogressoftheresearchanddesignofthedigitaltriggerfortheEASTpolarizedfieldpowersupplyrectifier.Thereportstartswithanoverviewoftheproject,includingthebackgroundandobjectives.Then,thereportdiscussesthetheoreticalprinciplesofdigitaltriggeringanditsrelevancetoEAST'srectifiersystem.Thereportalsopresentsthedesignofthedigitaltrigger,includingtheselectionofdigitalcomponentsandthedevelopmentofthetriggeringalgorithm.Finally,thereportoutlinesthefutureworkandexpectedoutcomesoftheproject.IntroductionTheEAST(ExperimentalAdvancedSuperconductingTokamak)isamajorfusionresearchprojectinChina.TheEASTsuperconductingtokamakdevicerequiresalargepowersupplysystemtomaintainhighcurrentoperations.TheEASTpolarizedfieldpowersupplyrectifierisoneofthekeycomponentsofthepowersupplysystem.TherectifiertransformstheACpowerintoDCpowertoprovidetherequiredcurrenttotheEASTdevice.ToensurethesafeandstableoperationoftheEASTdevice,thepowersupplysystemmustbehighlyreliable.OneofthecriticalaspectsoftheEASTrectifiersystemisthedigitaltriggerunit,whichgeneratesthetriggersignalfortherectifier.Thedigitaltriggerunitisresponsibleforcontrollingtheconductionangleoftherectifier.Traditionalanalogtriggeringsystemshaveseverallimitations,suchaslowaccuracy,poorstability,andhighpowerconsumption.Digitaltriggering,ontheotherhand,provideshighaccuracy,improvedstabilityandlowerpowerconsumption.Therefore,theproposedresearchaimstodevelopadigitaltriggerunitfortheEASTpolarizedfieldpowersupplyrectifier.TheoreticalprinciplesThedigitaltriggeringunitconvertstheACvoltageintodigitalsignalsthatdrivethegateofthethyristorforrectification.Thedigitaltriggeringunitprovidesbetteraccuracy,higherstabilityandlowerpowerconsumptionincomparisontotheanalogtriggeringunit.Thedigitaltriggeringunitconsistsofseveralkeycomponents,includingthemicrocontroller,digitalsignalprocessingcircuits,andinterfacecircuits.Thedigitaltriggeringschemeisbasedonthepulsewidthmodulation(PWM)technique.Inthe