外文翻译基于PLC的异步电动机监控系统的设计及应用

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1、一是作为领导干部一定要树立正确的权力观和科学的发展观，权力必须为职工群众谋利益，绝不能为个人或少数人谋取私利。要立志做大事，把心思用在工作上，用在干事业上，用在为职工群众谋利益上。领导干部只有严于律己，公正严明，职工群众才能相信组织，好的党风、政风、行风才能树起来。三是带头遵守党的政治纪律。全体党员干部都要严格遵守党的政治纪律和组织纪律。政治纪律是根本的纪律。政治纪律遵守不好，其他方面的纪律也遵守不好。讲政治纪律，就是要坚持党的基本理论、基本路线不动摇，在政治上同党中央保持一致，保证中央的政令畅通。党员必须在行动上服从，决不允许公开发表同中央的决定相反的言论，决不允许散布同党的路线方针政策

2、相反的意见，决不允许制造、传播政治谣言，决不允许有令不行，有禁不止，搞“上有政策，下有对策”。英文原文DesignandImplementationofPLC-BasedMonitoringControlSystemforInductionMotorMariaG.Ioannides,SeniorMember,IEEEAbstract—Theimplementationofamonitoringandcontrolsystemfortheinductionmotorbasedonprogrammablelogiccontroller(PLC)technologyisdescribed.Als

3、o,theimplementationofthehardwareandsoftwareforspeedcontrolandprotectionwiththeresultsobtainedfromtestsoninductionmotorperformanceisprovided.ThePLCcorrelatestheoperationalparameterstothespeedrequestedbytheuserandmonitorsthesystemduringnormaloperationandundertripconditions.Testsoftheinductionmotorsy

4、stemdrivenbyinverterandcontrolledbyPLCproveahigheraccuracyinspeedregulationascomparedtoaconventionalVfcontrolsystem.TheefficiencyofPLCcontrolisincreasedathighspeedsupto95%ofthesynchronousspeed.Thus,PLCprovesthemselvesasaveryversatileandeffectivetoolinindustrialcontrolofelectricdrives.IndexTerms—Co

5、mputer-controlledsystems,computerizedmonitoring,electricdrives,inductionmotors,motioncontrol,programmablelogiccontrollers(PLCs),variable-frequencydrives,voltagecontrol.I.INTRODUCTIONSincetechnologyformotioncontrolofelectricdrivesbecameavailable,theuseofprogrammablelogiccontrollers(PLCs)withpowerel

6、ectronicsinelectricmachinesapplicationshasbeenintroducedinthemanufacturingautomation[1],[2].Thisuseoffersadvantagessuchaslowervoltagedropwhenturnedonandtheabilitytocontrolmotorsandotherequipmentwithavirtuallyunitypowerfactor[3].ManyfactoriesusePLCsinautomationprocessestodiminishproductioncostandto

7、increasequalityandreliability[4]–[9].Otherapplicationsincludemachinetoolswithimprovedprecisioncomputerizednumericalcontrol(CNC)duetotheuseofPLCs[10].Toobtainaccurateindustrialelectricdrivesystems,itisnecessarytou