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1、开关磁阻电机调速系统设计摘要开关磁阻电动机调速系统（SwitchedReluctnceDrive，简称SRD）是由开关磁阻电动机、电力电子开关电路及驱动控制部分组成的高性能调速系统。开关磁阻电机具有结构简单坚固、成本低、容错能力强、调速范围宽、低速转矩大、起动电流小、转速精度高、耐高温、可频繁起动制动等优点，又在高度发展的电力电子和微机控制技术的支持下获得了良好的可控性能。因此，开关磁阻电机在驱动调速领域得到了广泛的应用。本文首先介绍了课题研究背景和意义。给出了开关磁阻电机控制系统的组成、运行原理和控制方式。给出了开关磁阻电机的控制策略。在M
2、atlab/Simulink交互式仿真集成环境下，对开关磁阻控制系统进行了建模、仿真及分析。接着，给出了开关磁阻控制系统的硬件、软件设计方案。主要包括：DSPTMS320LF2407最小系统、位置检测电路、电流检测电路、键盘和显示电路、上位机通信接口及电源系统、系统主程序、各模块初始化子程序、各功能子程序和各中断服务子程序等。最后，以三相6/4结构小功率开关磁阻电机作为执行元件，给出了仿真结果。关键词：开关磁阻电机；TMS320LF2407；位置检测；电流检测ISwitchtheresistanceofelectricalmachineryv
3、elocitymodulationsystemdesignABSTRACTSwitchedReluctanceDrivesystemisahighperformancesystem,whichiscomposedofSwitchedReluctanceMotor,Powerelectronicswitchingcircuitandcontroller.SwitchedReluctanceMotorhasnotonlylowcost,strongstructure,goodfault-tolerant，widerangespeedmodulat
4、ion,lowstartingcurrent,highspeedaccuracy,hightemperature,anditcanbestartedorstoppedfrequently,butalsoexcellentcontrollabilitybasedontheelectricandmircrocomputer.Thus,SwitchedReluctanceMotoriswidelyusedindriveandspeedadjustmentfield.Firstly,thebackgroundandsignificanceofthep
5、rojectweregiven.ThestructureofthepositioncontrolsystemofSRMwasgiven.TheoperationalprincipleandcontrolmodesofSRMwerediscussed.Theoutputtorquecouldbeindirectlycontrolledbytherotorangularaccelerationclosed-loopcontrolofSRM.Thepositioncontrolstrategywasalsopresented.IntheMatlab
6、/Simulinkinteractivesimulationintegratedenvironment,moduleconstruction,simulationandanalysisofcontrolsystemofSRMweregiven.Andthen,thehardwareandsoftwareofcontrolsystemofSRMweredesigned.ThedesignofhardwaremainlyincludestheleastsystemofDSPTMS320LF2407,thepositiondetectioncirc
7、uit,thecurrentdetectioncircuit,thekeyboardanddisplaycircuit，thecommunicationinterfaceofuppercomputerandthepowersystem.Thedesignofsoftwaremainlyincludesthemainprocedure,themodulesinitializationsubroutines,thesubroutinesandtheinterruptservicesubroutines.Finally,theexperiments
8、ystemwasestablishedwithathree–phase6/4structurelowpowerSRMprototypeasactionelement
