I基于PLC的景观建筑供水水泵控制系统设计摘要：随着生活条件的提高，环境也越来越美观，水景作为人们生活中必不可少的景观。在公共场所基本上都有建设，它们仅仅在规模上有所区别。本次设计就是一个对建筑瀑布供水水泵设计，在本次设计当中，使用了PLC、变频器，对水泵进行变频控制。本次设计的思路是依据音乐的音量控制瀑布大小。应用PLC将音频信号转换为脉冲信号，然后输入到变频器中，使变频器的输出频率随着音频信号的变化而变化，这样就对水泵进行了调速，改变了供水量，达到了瀑布大小随音乐变化的目的。这就用到了变频调速。变频调速有着良好的优点，大部分需要调速的场合都应用了它，是很先进的方式。所以利用PLC控制水泵供水也变得方便，高效。关键词：变频器；变频调速；PLCIIDesignofwatersupplypumpforlandscapearchitecturebasedonPLCAbstract:Withthecontinuousimprovementofpeople'slivingenvironment,theconstructionofthecityisbecomingmoreandmorebeautiful.Waterscapehasbecomeabeautifullandscapeinpeople'slife.Inlargeparks,squaresandscenicspotscanbeseeneverywhere,butthesize,controlmethodsaredifferent.Thisdesignisaconstructionwaterfallwatersupplypumpdesign,inthisdesign,theuseofPLC,frequencyconverter,thepumpfrequencyconversioncontrol.Theannoyingcontrolofthisdesignistocontrolthewaterfallsizebymusic.TheapplicationofPLCandtheaudiosignalisconvertedintoapulsesignal,theninputtotheinverter,theinverteroutputfrequencyvarieswiththeaudiosignal,sothatthepumpspeed,changethewatersupplyreachedthewaterfallwiththemusictothechangeofsize.Thisusesfrequencyconversionspeedregulation.Frequencyofitsexcellentperformanceandthespeedofbrakingperformance,highefficiency,highpowerfactorandenergysavingeffect,wideapplicationrangeandmanyotheradvantagesofbeingrecognizedasthemostpromisingwaytospeed.Therefore,theuseofPLCcontrolpumpwatersupplyhasbecomeconvenientandefficient.Keywords:Motor;Variablefrequencystarting;PLC1基于PLC的景观建筑供水水泵控制系统设计目录摘要.......................................................................................................................................................................IAbstract:.............................................................................................................................................................II第1章绪论.........................................................................................................................................................21.1课题研究设计的目的和意义.................................................................................................................21.2系统设计的来源...................................................................................................................................21.3系统设计的要求...................................................................................................................................21.4系统设计思想........................................................................................................................................21.5方案确定...............................................................................................................................................3第2章硬件设备.................................................................................................................................................42.1可编程控制器...................................................................................................................
