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《門座式起重機(jī)電氣控制系統(tǒng)中起升部分的PLC設(shè)計(jì)-畢業(yè)設(shè)計(jì)》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、畢業(yè)設(shè)計(jì)學(xué)生姓名:學(xué)號(hào):0110802219學(xué)院:電氣工程學(xué)院專業(yè):自動(dòng)化題目:門座式起重機(jī)電氣控制系統(tǒng)中起升部分的PLC設(shè)計(jì)指導(dǎo)教師:評(píng)閱教師:畢業(yè)設(shè)計(jì)中文摘要門座式起重機(jī)是港口碼頭數(shù)量和使用最多的、結(jié)構(gòu)復(fù)雜、機(jī)構(gòu)最多的、最典型的電動(dòng)裝卸機(jī)械。它具有較好的工作性能和獨(dú)特的優(yōu)越結(jié)構(gòu),通用性好,被廣泛的應(yīng)用于港口雜貨碼頭。要求門座式起重機(jī)在不同的場(chǎng)合,用相對(duì)應(yīng)的速度進(jìn)行工作,它的目的在與是起重機(jī)在各種合理的速度下有效的工作,從而提高生產(chǎn)率并且確保安全生產(chǎn)。目前門座式起重機(jī)的電氣控制由PLC和變頻器配合來實(shí)現(xiàn)。交流變頻調(diào)速相比其它起重機(jī)調(diào)速
2、方案有明顯的優(yōu)點(diǎn)。首先,調(diào)速時(shí)平滑性好,效率高。低速時(shí),特性靜關(guān)率較高,相對(duì)穩(wěn)定性好;其次,調(diào)速范圍較大,精度高;再次,起動(dòng)電流低,對(duì)系統(tǒng)及電網(wǎng)無沖擊,節(jié)電效果明顯。同時(shí)交流變頻器體積小,便于安裝、調(diào)試、維修簡(jiǎn)便,易于實(shí)現(xiàn)過程自動(dòng)化?;赑LC的電氣控制系統(tǒng)也具有可靠性高、抗干擾能力強(qiáng)、實(shí)時(shí)性好、安裝簡(jiǎn)單、維修改造方便等優(yōu)點(diǎn)。本論文以門座式起重機(jī)為背景,對(duì)門座式起重機(jī)起升部分的電氣控制系統(tǒng)進(jìn)行研究。主要內(nèi)容包括主要供電線路設(shè)計(jì),起升部分PLC程序的設(shè)計(jì)以及PLC與變頻器的現(xiàn)場(chǎng)通訊研究。關(guān)鍵詞門座式起重機(jī)PLCPROFIBUS變頻器畢業(yè)設(shè)
3、計(jì)外文摘要TitleGantrycraneelectricalcontrolsystemdesignofPLCliftingmechanismAbstractTheportalcraneisthenumberofportterminalandusethemostcomplexstructure,organizationthemost,themosttypicalelectrichandlingmachinery.Ithasbetterperformanceanduniquesuperiorstructure,commongood,isw
4、idelyusedinportcargoterminal.Theportalcranerequirementsondifferentoccasions,withthecorrespondingspeedwork,itspurposeandcranesatvariousreasonablespeedworkeffectivelytoimproveproductivityandensuresafetyinproduction.CurrentlyelectricdoorcontrolledbyPLCandinvertertomatchthei
5、mplementation.ACvariablespeedgovernorandothercraneprogram,hasobviousadvantages.First,thegovernorsmoothness,andhighefficiency.Atlowspeeds,thecharacteristicsofstaticclearancerateishigher,therelativestability;Secondly,greaterspeedrange,highprecision;Again,lowstartingcurrent
6、,noimpactonthesystemandthepowergrid,energy-savingeffectisobvious.Meanwhile,ACdrivessmallsize,easyinstallation,commissioning,maintenanceissimpleandeasytoimplementprocessautomation.PLC-basedelectricalcontrolsystemalsohashighreliability,stronganti-jammingcapability,real-tim
7、e,simpleinstallation,easymaintenanceandreconstructionandsoon.Inthisthesis,portalcranesinthebackground,doorpedestalcraneelectricalcontrolsystemuppartofthestudy.Themaincontentsincludethemainpowercircuitdesign,designandon-siteliftingCommunicationsResearchPLCPLCandinverterpa
8、rtoftheprogram.Thewillbeagreathelpformyfuturework.KeyWordsPortalcranePLCPROFIBUSInverter目錄1緒論…………………………