基于DSP低温等离子消毒电源的研究

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1、江南大学硕士学位论文基于DSP低温等离子消毒电源的研究姓名：付焕森申请学位级别：硕士专业：电力电子与电力传动指导教师：吴雷20080601AbstractAbstractThelow-temperatureplasmahasverywideprospectsinindustrialapplication。Atpresent．moststudiesofproducingplasmaarefocusedonthoseproducedbyDielectricBarrierDischarge(DBD)underatmosphere．Becausemostoftheconventionalsteril

2、izationtechniqueshavesomedisadvantagesinsuchasociety,thetheorythatthelow-temperatureplasmaCallkillbacilliwithoutpollutionisusedinthispaper．AndtheeffectofplasmaproducedbyDBDcorrelatesdirectlywithvoltage，frequencyandwave—formofthepowersupply．Asaresult，thelow-temperatureplasmasterilizationpower,whichh

3、ashighervoltageandhasfrequencyofthepowersupply,shouldbestudiedassoonaspossible．Thisdesignadoptedtheinputof380voltagealternatingcurrent,whichbecomesdirectcurrentbythree-phaserectification，thenadjustedthevoltagethroughBuckcircuit，convertedintoalternatingcurrentthroughIGBT，realizedtheoutputofhighfrequ

4、encyhighvoltagesinusoidalwavethroughinductortoleachwaveandhighfrequencytransformertoelevatevoltage．Atlast，whethertostarttokillbacilliisbasedontheanalysisofultravioletradiationintensityexamination．Thegoals，Outputvoltage，10-20kVcanbeadjusted．Outputfrequency,10～20kHzcanbeadjusted．Outputpower,5～lOkW1fl

5、lemathematicalmodeloflow—temperatureplasmasterilizationpowerisanalyzedbasedonthestructureofdischarge．Thisthesishasanalyzedthetopologystructureabouttheposer,andanalyzedtherectificationcircuit，Buckcircuit，invertercircuit，driveandprotection，alsosuppliedthemainparametersbasedonthestudy．Atthesametime，th

6、eTMS320LF2407ADSPthatisonekindproductofTICompany,onwhichthemaincircuitshasbeendesignedandthemainprogramhasbeenmadeinthisstudy．TKsinnovationofthisthesisisthatanewequivalentcircuitofplasmadischargehasbeendesignedbasedontheresearchesathomeandabroad，which{Sdividedintostartingcircuitwith扯gh—voltageandst

7、artingwitllnormal—voltage．Atthesametime．itanalyzedthemodel，whichlaidafoundationforthechoiceofdevicesandthedeterminationoftransformerparameters．Basedontheacademicstudy,compared、岍mtheresultofexperiments，which