基于DSP控制的單相在線式軟開關(guān)UPS研究.pdf

1、青島大學(xué)碩士學(xué)位論文基于DSP控制的單相在線式軟開關(guān)UPS研究姓名：邱心濤申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：電力系統(tǒng)及其自動(dòng)化指導(dǎo)教師：夏東偉20050501青島大學(xué)碩士學(xué)位論文AbstractAccordingtothenewdevelopmentofPowerElectronics，anexperimentalcontrolsystembasedonTMS320LF2407forsingle—phaseon—lineUPSisproposed

2、inthedissertationThewholesolutionofhardwareandsoftwareispresentedbasedontheleSOUrceoftheDSPcontrollerchipThehardwareofthecontrolsystemmainlyconsistsofthesamplingandpreprocessingunitsofanalogsignalssuchasoutputvoltage，out

3、putcurrent，inputvoltage，etc，andtheinsulationanddrivingunitsofPWMsignalsUC3842iscreativelyusedtocomposethedrivingcircuitSoitcannotonlyachievethebasicinsulationandthedrivingfunction，butalsocauachievetheselfdectionofthedriv

4、ingcircuit，theovercurrentprotectionandthezerovoltagedectionofIGBTThesoftwareincludesprocedurestocontrolandmonitortheUPSsuchassoftwarePu』PhaselockedLoops)，thevaluemodulationoftheoutputvoltageandtheproducingofPWMsignalsInt

5、hispaperthetecbniqueofsoftswitchingisusedinthelnveRerSotheefficiencyofinverterisimprovedtheelectromagneticdisturbanceisreduced，andthedeviceworksinmoreSeCUrerange。Thewholedigitaldesignmakethecontrolanddebuggingmoreconveni

6、ent，themodi／icationofcontmlstrategycontrolparametermoreeasierandtheembeddingofmalfunctioninspection，selfdiagnosis，correctionandcommunicationmoreeasierThenumberofcomponentisdecreased，sothesystemmalfunctionwhichiscausedbyt

7、hecomponentisdecreasedinthesametimeandthereliabilityisenhancedFinallybasedontheabovetheoryanalysisandsimulationresultsinthispapermakessomecorrelativeexperimentExperimentresultindicatesthatthevoltageofinverterswitchhasbec

8、omezerovoltagesituationsbeforetheswitchtriggersignalcomingSoitrealizesthatthezerovoltagesoftswitchingisachievedThevoltagepeakvalueisdecreasedobviouslyattheontimesotheswitchlossisdecreasedtooAtthesametime，theTHDisreducedo

9、bviouslysothequalityofoutputwaveisimprovedWhentheloadisunloadedsuddenlythefluctuationofclose—loopoutputWavefornlissmallerthantheopen—loopandthehomeostaticpeakvalueofvoltageisstableThewholesystemhasniceinputandoutputchara