基于DSP的模糊自适应PI交流调速系统

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1、西南交通大学硕士学位论文基于DSP的模糊自适应PI交流调速系统姓名：陈爽申请学位级别：硕士专业：电力电子与电力传动指导教师：肖建20090501西南交通大学硕士研究生学位论文第1I页AbstractHi曲一performanceadjustablevoltageadjustablefrequency(AVAF)controltechnologyofACmotorshasbeenwidelyappliedinvariousfieldssuchasindustrialautomationandelectricappliance，etc．ACmoto

2、risahigh．order,multivariableandstrongcouplingnonlinearsystem．ParameterreconstructandC00rdinatetransformisusedtorealizedecouplingcontrolformagnetizationcomponentandtorquecomponentofthestatorcurrent．However,theoperatingstatusofthemotorisvulnerabletotheeffectsofchangesinthemoto

3、rparameters．Furthermore．theparameterofthegeneralPIspeedcontrollerisdependedontheprecisemathematicalmodelofmotor．So．speedcontrolsystemperformanceiSaffectedbythemotorparameterschangeandenvironmentalvariables．Inordertoovercomeabove—mentionedproblems，adaptivefuzzyPIspeedcontroll

4、erisproposedtoregulatetheparameterofthefuzzyPIcontrollerreal．timeonlinesuchthatthespeedcontr01systemhasthestrongadaptivenessandrobustness．ThesimulationresultSindicatethatA坩contr01systembasedontheadaptivefuzzycontrollerhasavirtueoffastresponseandsmallovershot．Thehardwareandso

5、ftwaredesignoftheACdrivetestsystemiScompletedandtheACdrivedigitalcontrolsysternbasedonDSPisalsobuiltinthispaper．Where．thehardwaredesigniscomposedofDSPandIPMchipdesignandtheirperipheralcomponents．111eDSPchipisTMS320F2812，producedbycorporationofn，whichhasfixedpointoperationabi

6、litywit}l32bits．TheclockfrequencyofthisDSPiSupto150MHzSOthatcontrolpreciseandprocessingcapacityoftheadjustablespeedcontrolsystemiSmuchimproved．TheIPMchipisutilizedtoachieveintegrationandminiaturizationofthemaincircuitofthespeedcontrolsystem．Ontheotherhand．theSVPWMmodulationa

7、lgorithmisdevelopedasthecoreofsoftwaredesign．Modulardesignstrategiesofhardwareandsoftwareareappliedindifferentmodulestocompletethespecificfunction．Finally,integrateddebuggingofhardwareandsoftwareofthetestsystemisdoneandtherelevanttestsiSverifiedtheeffectivenessofthepresented

8、approach．TheexperimentalresultindicatesthattheexperimentdrivesystemCanreali