会员注册 | 登录 | 微信快捷登录 支付宝快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

   首页 人人文库网 > 资源分类 > DOC文档下载

plc控制电梯论文.doc

  • 资源星级:
  • 资源大小:1.21MB   全文页数:60页
  • 资源格式: DOC        下载权限:注册会员/VIP会员
您还没有登陆,请先登录。登陆后即可下载此文档。
  合作网站登录: 微信快捷登录 支付宝快捷登录   QQ登录   微博登录
友情提示
2:本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3:本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

plc控制电梯论文.doc

plc控制电梯论文Iplc控制电梯论文摘要随着科学技术和社会经济的发展,高层建筑已成为现代城市的标志。电梯作为垂直运输工具,承担着大量的人流和物流的输送,其作用在建筑物中至关重要。与此同时,人们对电梯的性能要求也越来越高,比如可靠性,操作方便,舒适性,低噪音,低能耗等等。随着人们对其要求的提高,电梯得到了快速发展,其拖动技术已经发展到了调频调压调速,其逻辑控制也由PLC代替原来的继电器控制。采用PLC对电梯进行控制,通过合理的选择和设计,能够有效的提高电梯的控制水平,极大地改善了电梯运行的舒适感,使电梯的控制达到了比较理想的控制效果。本文在介绍电梯基本结构的基础上,阐述了电梯的拖动原理和控制原理,重点分析了电梯系统设计中如何用PLC实现控制系统并编制控制程序,研究并提出了基于PLC和变频器的电梯控制系统的实现方案,针对这些问题对电梯系统进行了新的设计.设计出了新的采用PLC进行逻辑控制,用变频器调速的电梯控制系统。利用三菱PLCFX2N64来设计5层电梯控制系统。关键词电梯控制系统PLC变频器plc控制电梯论文IIABSTRACTWithscientificandtechnologicalandsocioeconomicdevelopment,highrisebuildingshavebecomethehallmarkofmoderncities.Asverticalliftequipment,alotofpeoplebearthetransportationandlogistics,itsroleinbuildingessential.Atthesametime,ithastolifttheperformancerequirementsarealsoincreasing,suchasreliability,easytooperate,comfortablenature,lownoise,consumption,andsoon.Buttheelevatorasanimportanttrafficinskyscraper,italsohasdevelopedquicklywiththeimprovingrequirementofthePeople.ItsdraggingtechnologyhasdevelopedfromDCtimingtoACvariablefrequencytimingandItslogiccontrolrelaycontrolalsohasbeenreplacedbyPLC.usingPLCtocontroltheelevator,thereliabilityisimprovedandthefeelingofcomfort15betterthroughthereasonableselectionanddesign,sotheeffectofcontrolismoreideal.Inordertomeetthecomfort,improvetransportingefficiencyandreachtherightfloor,thegivencurveofanelevatorisakeypoint.Mostofpeoplessensitivityonchangingspeedisaboutaccelerationmovement.Comfortmeansaccelerationanddecelerationonsmoothness.Toacquirefavorablecomfort,thestartingandbrakingcurvesdesignoftheelevatoriscomposedoftwoscurvesandonebeeline.Throughadjustingtheaccelerationtimeandthatofthescurves,idealstartingandbrakingcurvesaregained.Thispaper,basedontheintroductionoftheelevatorsbasicstructure,expatiatesthedriveandcontrolprincipleofelevator,andanalyzeshowtousethePLCtoprogramcontrollingprocess.TheimplementationprojectofelevatorsVVVFcontrolsystembasedonPLCandtransducerisstudiedandproposed.Thisarticlewaspreciselyhascarriedontheimprovementdesigninviewofthesequestionstotheexistingelevatorsystem.UsesPLCtocarryonthelogicalcontrolmodulatesvelocitytheelevatorcontrolsystemwiththefrequencychanger.KEYWORDSelevatorcontrolsystemPLCinverterplc控制电梯论文III目录摘要.........................................................................................IABSTRACT.................................................................................II1前言............................................................................................11.1电梯的起源和发展...................................................................................11.2电梯信号控制系统发展的现状...............................................................21.2.1电梯继电器控制系统的特点及存在问题......................................31.2.2PLC及在电梯控制中的应用特点..................................................41.2.3PLC控制电梯的优点......................................................................51.3本文的工作...............................................................................................52电梯的概述.................................................................................62.1电梯的结构...............................................................................................62.2电梯的控制要求.......................................................................................83硬件选择...................................................................................103.1PLC的选择...........................................................................................103.1.1PLC的定义和特点........................................................................103.1.2PLC的主要功能和应用................................................................133.1.3PLC与其他工业控制系统的比较................................................143.1.4PLC的系统硬件设计....................................................................163.1.5可编程控制器机型的选择............................................................173.2变频器选择.............................................................................................193.2.1变频器的分类...............................................................................193.2.2变频器的控制方式........................................................................19plc控制电梯论文IV3.2.3变频器的选型................................................................................213.2.4变频器的相关计算及其规格........................................................224五层电梯总体设计....................................................................254.1电机调速系统的设计.............................................................................254.2电力调速系统的应用与发展.................................................................264.3异步电机的调速方法及经济技术比较.................................................274.4井道信号系统的设计.............................................................................314.4.1干簧感应器的工作原理................................................................314.4.2井道信号系统的设计....................................................................324.5电梯控制系统的设计.............................................................................335软件设计...................................................................................355.1正常运行控制软件设计.........................................................................355.2流程图.....................................................................................................355.3电梯的工艺流程.....................................................................................38结束语.........................................................................................41参考文献......................................................................................42致谢.............................................................................................43附录...........................................................................................44附录一外文文献及其译文..........................................................................44附录二符号说明..........................................................................................48附录三电梯I/O接线图...............................................................................49附录四五层五站电梯电气元件表..............................................................50附录五PLC梯形图......................................................................................51

注意事项

本文(plc控制电梯论文.doc)为本站会员(zhuanyunshi)主动上传,人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知人人文库网([email protected]),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5