【精品文档】437关于电气自动化PLC简介概述介绍有关的外文文献翻译成品：可编程逻辑控制器（PLC）的应用综述（中英文双语对照）文档格式.docx

【精品文档】437关于电气自动化PLC简介概述介绍有关的外文文献翻译成品：可编程逻辑控制器（PLC）的应用综述（中英文双语对照）文档格式.docx

《【精品文档】437关于电气自动化PLC简介概述介绍有关的外文文献翻译成品：可编程逻辑控制器（PLC）的应用综述（中英文双语对照）文档格式.docx》由会员分享，可在线阅读，更多相关《【精品文档】437关于电气自动化PLC简介概述介绍有关的外文文献翻译成品：可编程逻辑控制器（PLC）的应用综述（中英文双语对照）文档格式.docx（32页珍藏版）》请在冰豆网上搜索。

本文价格不贵,也就几十块钱！

一辈子也就一次的事！

外文标题：

Areviewontheapplicationsofprogrammablelogiccontrollers（PLCs）

外文作者：

EphremRyanAlphonsus,MohammadOmarAbdullah

文献出处:

RenewableandSustainableEnergyReviews60（2019）1185–1205（如觉得年份太老，可改为近2年，毕竟很多毕业生都这样做）

英文4996单词，31840字符（字符就是印刷符），中文8000汉字。

（如果字数多了，可自行删减，大多数学校都是要求选取外文的一部分内容进行翻译的。

）

Abstract：

Astheneedofautomationincreasessignificantly,acontrolsystemneedstobeeasilyprogrammable,flexible,reliable,robustandcosteffective.Inthispaperareviewontheapplicationofprogrammablelogiccontroller（PLC）inourcurrentmarketisdiscussed.InvestigationsontheapplicationsofPLCsinenergyresearch,engineeringstudies,industrialcontrolapplicationsandmonitoringofplantsarereviewedinthispaper.PLCsdohaveitsownlimitations,butfindingsindicatethatPLCshavemoreadvantagesthanlimitations.ThispaperconcludesthatPLCscanbeusedforanyapplicationswhetheritisofsimpleorcomplicatedcontrolsystem.

Keywords:

PLC；

Energysystems；

Industrialcontrol；

Monitoring

1.Introduction

Programmablelogiccontrollers[PLC]arecomputer-based,solid-state,singleprocessordevicesthatemulatethebehaviorofanelectricladderdiagram[1]capableofcontrollingmanytypesofindustrialequipmentandentireautomatedsystems[2].PLCsareusuallyamainpartofautomaticsystemsinindustry[3].Theyareveryefficientandreliableinapplicationsinvolvingsequentialcontrolandthesynchronizationofprocessesandauxiliaryelementsinthemanufacturing,chemicalandprocessindustries[4,5].BesideshavingtechnologicaladvantagesofusingPLC,italsodecreasesthepricesintheadvancedlevelandcomplexcontrolsystem[5–7].Nowadays,mostofthecontrolelementsusedtoexecutethelogicofthesystemwassubstitutedbythePLCs[8].Thetermlogicisusedbecausetheprogrammingisprimarilyconcernedwithimplementinglogicandswitchingoperations.Inputdevicessuchasswitches,andoutputdevicessuchasmotors,beingcontrolledareconnectedtothePLCandthenthecontrollermonitorstheinputsandoutputsaccordingtothemachineorprocess[9].OriginallyPLCsweredesignedasareplacementforhard-wiredrelayandtimerlogiccontrolsystems.（Hard-wiringmeansthatallofthecomponentsweremanuallyconnectedbywires）.PLCconsistsoftwopartsi.e.thePLChardwareandprogramming.DetailsonthehardwareandprogrammingwillbediscussedintheSections3and4,respectively.

PLCswerefirstusedbytheautomotiveindustryinthelate1960s[2,10–13],itsautomatedequipmentwasprimarilycontrolledbydiscreteinflexiblecircuitsconsistingofelectro-mechanicalrelaysandcoilshardwiredonpanels.GeneralMotorsdevelopedthespecificationsforaprogrammablecontrollerthatcouldreplacethehard-wiredrelaycircuits[2,11,12].Themostradicalidea,wastheimplementationofaprogramminglanguagebasedonarelayschematicdiagram,withinputs（fromlimitswitches,pushbuttons,etc.）representedbyrelaycontact,andoutputs（tosolenoids,motorstarters,lamps,etc.）representedbyrelaycoils[12].Fig.1（a）showsasimplehydrauliccylinderwhichcanbeextendedorretractedbypushbuttons.Itsstrokeissetbylimitswitcheswhichopenattheendoftravel,andthesolenoidscanonlybeoperatedifthehydraulicpumpisrunning.ThiswouldbecontrolledbythecomputerprogramofFig.1（b）whichisidenticaltotherelaycircuitneededtocontrolthecylinder.Theseprogramslookliketherungsonaladder,andwereconsequentlycalled‘LadderDiagrams.’

Inthemid-1960s,Hydramatic,adivisionofGeneralMotorsCorporation,envisionedthatacomputercouldbeusedtoperformthelogicfunctionsthenperformedbyrelays[2].Theengineeringteamwrotealistoffeaturesoftheproposedcomputingdevice.GMinitiatedthedevelopmentofthecomputingdevicebyspeci-fyingcertaindesigncriteria,including:

Thedevicemustbedurablesothatitcanoperateintheharshenvironments（dirtyair,humidity,vibration,electricalnoise,etc.）encounteredinafactory.

Itmustprovideflexibilitybyimplementingcircuitmodificationsquicklyandeasilythroughsoftwarechanges.

Itmustbedesignedtouseaprogramminglanguageinladderdiagramformalreadyfamiliartotechniciansandelectricians.

Itmustallowfieldwiringtobeterminatedoninput/outputterminalsofthecontroller.

GMusedthislistofspecificationswhenitsolicitedinterestedcompaniestodevelopadevicethatmetitsdesignrequirements.DickMorleyconceivedthefirstprogrammablecontrolleronJanuary1,1968[14].Whenhiscompany,GouldModiconCompanydevelopedthefirstPLC[2,11,14],thefirstmodel084PLCwasinstalledattheOldsmobileDivisionofGeneralMotorsCorporation