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1、英文原文DesignandImplementationofPLC-BasedMonitoringControlSystemforInductionMotorMariaG.Ioannides,SeniorMember,IEEEAbstract一Theimplementationofamonitoringandcontrolsystemfortheinductionmotorbasedonprogrammablelogiccontroller(PLC)technologyisdescribed.Also,theimplem
2、entationofthehardwareandsoftwareforspeedcontrolandprotectionwiththeresultsobtainedfromtestsoninductionmotorperformanceisprovided.ThePLCcorrelatestheoperationalparameterstothespeedrequestedbytheuserandmonitorsthesystemduringnormaloperationandundertripconditions.T
3、estsoftheinductionmotorsystemdrivenbyinverterandcontrolledbyPLCproveahigheraccuracyinspeedregulationascomparedtoaconventionalVfcontrolsystem.TheefficiencyofPLCcontrolisincreasedathighspeedsupto95%ofthesynchronousspeed.Thus,PLCprovesthemselvesasaveryversatileande
4、ffectivetoolinindustrialcontrolofelectricdrives.IndexTerms——Computer-controlledsystems,computerizedmonitoring,electricdrives,inductionmotors,motioncontrol,programmablelogiccontrollers(PLCs),variable-frequencydrives,voltagecontrol.I.INTRODUCTIONSincetechnologyfor
5、motioncontrolofelectricdrivesbecameavailable,theuseofprogrammablelogiccontrollers(PLCs)withpowerelectronicsinelectricmachinesapplicationshasbeenintroducedinthemanufacturingautomation[1],[2].Thisuseoffersadvantagessuchaslowervoltagedropwhenturnedonandtheabilityto
6、controlmotorsandotherequipmentwithavirtuallyunitypowerfactor[3].ManyfactoriesusePLCsinautomationprocessestodiminishproductioncostandtoincreasequalityandreliability[4]-[9].Otherapplicationsincludemachinetoolswithimprovedprecisioncomputerizednumericalcontrol(CNC)d
7、uetotheuseofPLCs[10].Toobtainaccurateindustrialelectricdrivesystems,itisnecessarytousePLCsinterfacedwithpowerconverters,personalcomputers,andotherelectricequipment[11]-[13].Nevertheless,thismakestheequipmentmoresophisticated,complex,andexpensiveL14J415].Fewpaper
8、swerepublishedconcerningdemachinescontrolledbyPLCs.Theyreportboththeimplementationofthefuzzymethodforspeedcontrolofademotor/generatorsetusingaPLCtochangethearmaturevo
