基于DSP的諧波測量儀的研究.pdf

1、蘭州理工大學(xué)碩士學(xué)位論文基于DSP的諧波測量儀的研究姓名：黃錦華申請學(xué)位級別：碩士專業(yè)：系統(tǒng)工程指導(dǎo)教師：陳若珠駱東松20100501璉’『：DSP的i皆波測硅儀的研究AbstraetWiththedevelopmentofpowerelectronictechnologymoreandmorenon‘lineardevicesareappliedtothepowersystemPowernetworkharmonicpollution

2、isincreasingSothesecurityofpowersystemisthreatenedTheoperatinglossisincreasingTheuser’SnormalworkisaffectedTherefore，anglicizingandmonitoringpowersystemharmonicsisveryusefultomakesurepowersystemrunningsafelyThetraditiona

3、lpowerqualityanglicizingandmonitoringsystemsgenerallyuseMCUascode，butallMCUisnotfastenoughtosamplehi曲lyandrealtimeanalysisSothesampledataisnotenough，andtheaccuracyofdataislowInrecentyears，digitalsignalprocessor(DSP)isuse

4、d，SOthathigh—speedsamplinghigh—speeddatastoragingandreal—timeprocessingofdatacanbefinishedperfectlyTheDSPUSeSadvancedHarvardarchitectureTheprogrammemoryanddatastoragehastheirownbusItcanprocessprogramanddataatthesametimeS

5、oitgreatlyimprovestheaccuracyofharmonicanglicizingWiththemethodofanglicizingharmonicandelectronicsdeveloping，moreandmoreharmonicanglicizingequipmentisusedHarmonicanglicizingequipmentsmadeinabroadarepowerful，highprecision

6、butexpensiveHarmonicanglicizingequipmentsmadeathomeisoppositeThesubjectintroducesaharmonicanglicizingequipmentbasedonhighspeedDSPandH吧whichishighspeed，powerfulandcheapFirstlyvarietyofharmonicanglicizingalgorithmiscompare

7、dinthesubjectTheFFrischoosedandstudieddeeplyWindowsandinterpolationisusedtoimprove胍SecondlyappropriateelectroniccomponentsarechoosedtodesignaharmonicanglicizingequipmentThepaperintroducesthehardwareofharmonicanglicizinge

8、quipmentthatincludessamplemodule，harmonicanglicizingmodule，manmachineinterfacemoduleandserialinterfacemodule，etcThirdlythesoftwareofharmonicanglicizingequipmentisdesigned，whichincludesprogramofsamplingdata，processingdata

9、，communicationanduppermonitoretcFinallytheharmonicanglicizingequipmentisusedtoanglicizeharmonicthatproducedbyanotherequipmentThepaperintroducesreasonofanglicizingerrorandthewayofreducederrorisintroducedTheresultachievest

10、hedesiredresultsThefinalresultisasgoodasexpectedTheanglicizingresultindicatesthattheharmonicanglicizingequipmentbasedonDSPishigh—speedandhigh—accuracyItcanbeusedinpowersystemKeyword：harmonicmeasurement；fastfouriertransfo