基于TMS320F2812的多采樣率交流調(diào)速系統(tǒng).pdf

1、西南交通大學(xué)碩士學(xué)位論文基于TMS320F2812的多采樣率交流調(diào)速系統(tǒng)姓名：孫叢君申請學(xué)位級別：碩士專業(yè)：電力電子與電力傳動指導(dǎo)教師：肖建20100501西南交通大學(xué)碩士研究生學(xué)位論文第1I頁AbstractNowadays，ACspeedregulationtechnologyhaswidelyappliedinindustrialfieldsThehighlydevelopingeconomyrequeststhatACspeed

2、regulationsystemshouldhavehigherprecision，widerspeedregulatingrangeandfasterresponse，whichurgespeopletostudytheACspeedregulationtechnologycontinuouslyAlong、現(xiàn)ttltherapiddevelopmentofsemiconductorindustrynewpowerelectronic

3、devicesandmicroprocessormaketheACspeedregulationsystemmoreintegratedandintelligent；andthehardwareisbecomingmorecompactandsimpleTheACspeedregulationsystembasedonDSPandPMhasbecomemoreandmoredesigners’preferredchoiceTherefo

4、re，inordertoV耐矽thenewACspeedregulationtechnologyACspeedregulationsystembasedon1]MS320F2812andPM50I遲A120hasbeenbuiltupInthispaperthedesignofmaincircuitcontrolcircuitprotectioncircuitanddetectioncircuitisintroducedindetail

5、，andtheanti—interferencedesignisalsodiscussedDirectTorqueControl(DTC)technologyofinductionmotorwhichfollowsthefieldorientedcontrolsince1980s，isanewcontrolmethodformotordriveDifferentfromthedecouplingalgorithmoffieldorien

6、tedcontrol，DTCcontrolsthemotortorquedirectlythereforeithashighdynamicperformanceItonlyneedssimplecoordinatetransformationWithanuncomplicatedstructure，itcalculatesthefluxandthetorqueofACeleetromotorusingstatorparameterSOi

7、t’SnotsensitivetotherotorparametersConsequentlyDTChasabroadapplicationprospectSo，researchonthecontrolcharacteristicsandperformanceimprovementhasbecomeahotspotFortheDTCsystem，themoreinformationCanbeobtainedwhichCanimprove

8、thecontrolperformanceofthesystem，whenusingthehighersamplingfrequencyTheA／DconversiontimeofTMS320F2812isonlyscoresns，soitCanprovideahighersamplingfiequeneyforDTCsystemButbeinglimitedbytheinverterswitchingfrequencytraditio

9、nalDTCsystemworksunderalowsamplingfrequencyanditsperformanceisrestrictedseriouslyThispapercombinesthemultiratedigitalcontroltheorywithDTCsystem，deducesanewmethodtocalculatestatorfluxoftheinductionmotorThesamplingfrequenc

10、yofthemotor’SoutputstateisaugmentedmeanwhileensuredtheswitchingfrequencymeetsthedemandofinverterInthispaperMatlab／SimulinkmodelsoftraditionflDTCsystemandDTCsystembasedonmultiratedigitalcontroltheoryhavebeenbuiltupto謝矽the