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1、plc控制電梯論文Iplc控制電梯論文摘要隨著科學(xué)技術(shù)和社會(huì)經(jīng)濟(jì)的發(fā)展，高層建筑已成為現(xiàn)代城市的標(biāo)志。電梯作為垂直運(yùn)輸工具，承擔(dān)著大量的人流和物流的輸送，其作用在建筑物中至關(guān)重要。與此同時(shí)，人們對(duì)電梯的性能要求也越來(lái)越高，比如可靠性，操作方便，舒適性，低噪音，低能耗等等。隨著人們對(duì)其要求的提高，電梯得到了快速發(fā)展，其拖動(dòng)技術(shù)已經(jīng)發(fā)展到了調(diào)頻調(diào)壓調(diào)速，其邏輯控制也由PLC代替原來(lái)的繼電器控制。采用PLC對(duì)電梯進(jìn)行控制，通過(guò)合理的選擇和設(shè)計(jì)，能夠有效的提高電梯的控制水平，極大地改善了電梯運(yùn)行的舒適感，使電梯的控制達(dá)到了比較理想的控制效果。本文在介紹電梯基本結(jié)構(gòu)的基礎(chǔ)上，闡述了電梯的拖動(dòng)原理和控制原
2、理，重點(diǎn)分析了電梯系統(tǒng)設(shè)計(jì)中如何用PLC實(shí)現(xiàn)控制系統(tǒng)并編制控制程序，研究并提出了基于PLC和變頻器的電梯控制系統(tǒng)的實(shí)現(xiàn)方案，針對(duì)這些問(wèn)題對(duì)電梯系統(tǒng)進(jìn)行了新的設(shè)計(jì).設(shè)計(jì)出了新的采用PLC進(jìn)行邏輯控制，用變頻器調(diào)速的電梯控制系統(tǒng)。利用三菱PLCFX2N-64來(lái)設(shè)計(jì)5層電梯控制系統(tǒng)。關(guān)鍵詞：電梯；控制系統(tǒng)；PLC；變頻器plc控制電梯論文IIABSTRACTWithscientificandtechnologicalandsocio-economicdevelopment,high-risebuildingshavebecomethehallmarkofmoderncities.Asvertical
3、liftequipment,alotofpeoplebearthetransportationandlogistics,itsroleinbuildingessential.Atthesametime,ithastolifttheperformancerequirementsarealsoincreasing,suchasreliability,easytooperate,comfortablenature,lownoise,consumption,andsoon.Buttheelevatorasanimportanttrafficinskyscraper，italsohasdeveloped
4、quicklywiththeimprovingrequirementofthePeople.ItsdraggingtechnologyhasdevelopedfromDCtimingtoACvariablefrequencytimingandItslogiccontrol-relaycontrolalsohasbeenreplacedbyPLC.usingPLCtocontroltheelevator，thereliabilityisimprovedandthefeelingofcomfort15betterthroughthereasonableselectionanddesign，soth
5、eeffectofcontrolismoreideal.Inordertomeetthecomfort,improvetransportingefficiencyandreachtherightfloor,thegivencurveofanelevatorisakeypoint.Mostofpeoplessensitivityonchangingspeedisaboutaccelerationmovement.Comfortmeansaccelerationanddecelerationonsmoothness.Toacquirefavorablecomfort,thestartingandb
6、rakingcurvesdesignoftheelevatoriscomposedoftwos-curvesandonebeeline.Throughadjustingtheaccelerationtimeandthatofthes-curves,idealstartingandbrakingcurvesaregained.Thispaper,basedontheintroductionoftheelevatorsbasicstructure,expatiatesthedriveandcontrolprincipleofelevator,andanalyzeshowtousethePLCtop
7、rogramcontrollingprocess.TheimplementationprojectofelevatorsVVVFcontrolsystembasedonPLCandtransducerisstudiedandproposed.Thisarticlewaspreciselyhascarriedontheimprovementdesigninviewofthesequestionstotheexistingelevatorsystem.UsesPLCtocarryonthelogicalcontrolmodulatesvelocitytheelevatorcontrolsystem
8、withthefrequencychanger.KEYWORDS:elevator；controlsystem；PLC；inverterplc控制電梯論文III目錄摘要.IABSTRACT.II1前言.11.1電梯的起源和發(fā)展.11.2電梯信號(hào)控制系統(tǒng)發(fā)展的現(xiàn)狀.21.2.1電梯繼電器控制系統(tǒng)的特點(diǎn)及存在問(wèn)題.31.2.2PLC及在電梯控制中的應(yīng)用特點(diǎn).41.2.3PLC控制電梯的優(yōu)點(diǎn).51.3本文的工作.52電梯的概述.62.1電梯的結(jié)構(gòu).62.2電梯的控制要求.83硬件選擇.103.1PLC的選擇.103.1.1PLC的定義和特點(diǎn).103.1.2PLC的主要功能和應(yīng)用.133.1.3PLC
9、與其他工業(yè)控制系統(tǒng)的比較.143.1.4PLC的系統(tǒng)硬件設(shè)計(jì).163.1.5可編程控制器機(jī)型的選擇.173.2變頻器選擇.193.2.1變頻器的分類.193.2.2變頻器的控制方式.19plc控制電梯論文IV3.2.3變頻器的選型.213.2.4變頻器的相關(guān)計(jì)算及其規(guī)格.224五層電梯總體設(shè)計(jì).254.1電機(jī)調(diào)速系統(tǒng)的設(shè)計(jì).254.2電力調(diào)速系統(tǒng)的應(yīng)用與發(fā)展.264.3異步電機(jī)的調(diào)速方法及經(jīng)濟(jì)技術(shù)比較.274.4井道信號(hào)系統(tǒng)的設(shè)計(jì).314.4.1干簧感應(yīng)器的工作原理.314.4.2井道信號(hào)系統(tǒng)的設(shè)計(jì).324.5電梯控制系統(tǒng)的設(shè)計(jì).335軟件設(shè)計(jì).355.1正常運(yùn)行控制軟件設(shè)計(jì).355.2流程圖.355.3電梯的工藝流程.38結(jié)束語(yǔ).41參考文獻(xiàn).42致謝.43附錄.44附錄一外文文獻(xiàn)及其譯文.44附錄二符號(hào)說(shuō)明.48附錄三電梯I/O接線圖.49附錄四五層五站電梯電氣元件表.50附錄五PLC梯形圖.51
plc控制電梯論文.doc
