基于TMS320F2812A的永磁同步电机伺服系统设计

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1、浙江工业大学硕士学位论文基于TMS320F2812A的永磁同步电机伺服系统设计姓名：林正申请学位级别：硕士专业：检测技术与自动化装置指导教师：冯浩;钟德刚20050301化控制器；针对当前转子位置检测方法存在的各种不足，选用了对电机绕组施加脉冲电压，检测由于三相绕组电感变化引起的电流差异来判定转子初始位置的新方法；并利用RS-485作为与Pc机通讯的接口，开发了具有实时监控并显示的上位机应用程序，增加了系统运行状态的可观性、实用性，缩短了调试周期，方便现场运行，具有较高的工程使用价值。最后，对上述系统进行了试验研究。通过实验结果分析，进一步验证和深化了

2、上述所取得的一些理论结果，表明了系统设计合理、技术得当、性能可靠。关键词：永磁同步电机，伺服系统，数字信号处理器，弱磁控制，空间矢量脉宽调制Il浙江工业大学硕士学位论文DESIGNoFPERNIANENTMAGNETSYNCHRoNoUSMoToRSERVOSYSTEMBASEDoNTM$320F2812AABSTRACTServosystemcombmestheelectricalmomrtheorieswitllthemodempowerelectronicstechniques，sensortechniques，microprocessortec

3、hniquesandadVancedcontroltheories．Astherepresentativeofmodemelectricalmotors，permanentmagnetsynchronousmomr(PMSM)isidealforadvancedservosystemsforitspotentialsofhighefficiency,hightorquetocurrentratio，andlowinenia．Thus，permanentmagnetsynchronousmotoriswidelyregardedinservocontro

4、lfield．ThedissertationfocusesonthedesignofthesystemforpermanentmagnetsynchronousmotorservosystembasedonthemostadvancedDSPchip-TMS320F2812A，andhasdonesometheoreticresearchaswellasexperimentalresearchtosomekeypartsFirstly，thedissertationsummarizestheadVantagesanddisadvantagesofACs

5、ervosystems，andunderstandsthesignificanceofthedevelopingPMSMservosystemclearSecondly,thedissertationsummarizesthathowtoPMSMworkandhowtocontrolit，improvesthePMSMstructuretoresolvingtheheatingof111浙江工业大学硕士学位论文bigpowerPMSM．ItsummarizestheprincipleandimplementationoftheField—Oriente

6、dControl，adoptsthefield-weakenbasedonthesmallestportvoltageratiotoextendtherangeofspeed，anddesignthecontrolschemeofACservocontrolsystem．Thirdly,accordingtothedesignprincipleofmodularization，aschemeoffulldigitalACdriversystembasedOndigitalsignalprocessor(DSP)isstudiedandachieved．

7、Astudyplatformwithplentifulhardwareandsoftwarehasbeendeveloped．Thedissertationdevisesawayofidentifythestartpositionofrotor,whichbyinputtingpulsevoltageintowindinganddetectsthecurrentdifferenceduetoinductancechanging．TheDSPcommunicationswiththePCbyRS一485anddevelopsthewatchingandd

8、isplayingprogram，itmakesthesystemmoreconvenient