[畢業(yè)設(shè)計(jì)精品]直流電機(jī)調(diào)速系統(tǒng)的matlab仿真

運(yùn)動(dòng)控制系統(tǒng)課程設(shè)計(jì)摘要直流調(diào)速系統(tǒng)具有調(diào)速范圍廣、精度高、動(dòng)態(tài)性能好和易于控制等優(yōu)點(diǎn)，所以在電氣傳動(dòng)中獲得了廣泛應(yīng)用。本文從直流電動(dòng)機(jī)的工作原理入手，建立了雙閉環(huán)直流調(diào)速系統(tǒng)的數(shù)學(xué)模型，并詳細(xì)分析了系統(tǒng)的原理及其靜態(tài)和動(dòng)態(tài)性能。然后按照自動(dòng)控制原理，對(duì)雙閉環(huán)調(diào)速系統(tǒng)的設(shè)計(jì)參數(shù)進(jìn)行分析和計(jì)算，利用SIMULINK對(duì)系統(tǒng)進(jìn)行了各種參數(shù)給定下的仿真，通過(guò)仿真獲得了參數(shù)整定的依據(jù)。在理論分析和仿真研究的基礎(chǔ)上，本文設(shè)計(jì)了一套實(shí)驗(yàn)用雙閉環(huán)直流調(diào)速系統(tǒng)，詳細(xì)介紹了系統(tǒng)主電路、反饋電路、觸發(fā)電路及控制電路的具體實(shí)現(xiàn)。對(duì)系統(tǒng)的性能指標(biāo)進(jìn)行了實(shí)驗(yàn)測(cè)試，G15932G7138所設(shè)計(jì)的雙閉環(huán)調(diào)速系統(tǒng)G17828行G12295定G2499G19764，具有G17751好的靜態(tài)和動(dòng)態(tài)性能，G17810G2052了設(shè)計(jì)G16213G8726。G18331用G48G36G55G47G36G37G17731G1226中的控制工具G12677對(duì)直流電動(dòng)機(jī)雙閉環(huán)調(diào)速系統(tǒng)進(jìn)行計(jì)算機(jī)G17753G2173設(shè)計(jì)，并用SG44G48G56G47G44G49G46進(jìn)行動(dòng)態(tài)數(shù)G4395仿真G15G2528G7114G7609G11487仿真G8886G5430G15以G8504驗(yàn)G16789設(shè)計(jì)的調(diào)速系統(tǒng)G7171G2554G2499行。G3關(guān)鍵詞直流電機(jī)直流調(diào)速系統(tǒng)速度調(diào)G14422G3132電流調(diào)G14422G3132雙閉環(huán)系統(tǒng)仿真ABSTRACTDCMOTORHASBEENWIDELYUSEDINTHEAREAOFELECTRICDRIVEBECAUSEOFITSNEATLYADJUSTMENT,SIMPLEMETHODANDDCMOTORHASBEENWIDELYUSEDINTHEAREAOFELECTRICDRIVEBECAUSEOFITSNEATLYADJUSTMENT,SIMPLEMETHODANDSMOOTHCONTROLINAWIDERANGE,BESIDESITSCONTROLPERFORMANCEISEXCELLENTBEGINNINGWITHTHETHEORYOFDCMOTOR,THISDISSERTATIONBUILTSUPTHEMATHEMATICMODELOFDCSPEEDCONTROLSYSTEMWITHDOUBLECLOSEDLOOPS,DETAILEDLYDISCUSSESTHESTATICANDDYNAMICSTATEPERFORMANCEOFTHESYSTEMAFTERWARD,ACCORDINGTOAUTOMATIONTHEROYTHISPAPARCALCULATESTHEPARAMETERSOFTHESYSTEMTHEN,THISDISSERTATIONSIMULATESANDANALYZESTHESYSTEMBYMEANSOFSIMULINKTHERESULTSOFSIMULATIONARECONSISTENTWITHTHEORYCALCULATIONSOMEEXPERIENCEWASACQUIREDTHROUGHSIMULATIONBASEDONTHETHEORYANDSIMULATION,THISDISSERTATIONDESIGNSADCSPEEDCONTROLSYSTEMWITHDOUBLECLOSEDLOOPS,DISCUSSESTHEREALIZATIONOFMAINCIRCUIT,FEEDBACKCIRCUIT,CONTROLCIRCUITANDTRIGGERCIRCUITTHERESULTSOFEXPERIMENTSHOWTHATTHESTATICANDDYNAMICSTATEPERFORMANCEOFTHISSYSTEMAREGOOD,WHICHINDICATETHATTHEDESIGNCANMEETTHEREQUIREMENTSCOMPUTERAIDEDANALYSISANDDESIGNARECARRIEDOUTFORSPEEDCONTROLLINGSYSTEMOFTHEDCMOTORBYBYUSINGTOOLBOXANDSIMULINKKEYWORDSDCMOTOR,DCGOVERNINGSYSTEM,SPEEDGOVERNOR,CURRENTGOVERNOR,DOUBLELOOPCONTROLSYSTEM,SIMULINK目錄摘要ABSTRACT一、雙閉環(huán)直流調(diào)速系統(tǒng)的工作原理G3G3G20、雙閉環(huán)直流調(diào)速系統(tǒng)的介紹G3G3G3G3G21、雙閉環(huán)直流調(diào)速系統(tǒng)的G13464G6116G3G3G3G22、雙閉環(huán)直流調(diào)速系統(tǒng)的G12295態(tài)G13479G7512G3282和靜G10317性G3G3G23、雙閉環(huán)直流調(diào)速系統(tǒng)的數(shù)學(xué)模型G3二、系統(tǒng)設(shè)計(jì)方法及步驟G20、系統(tǒng)設(shè)計(jì)的一G14336原G2029G3G21、電流環(huán)設(shè)計(jì)G3G708G20G709G11842定G7114G19400G5132數(shù)G3G11G21G12G3G17885G6333電流調(diào)G14422G3132G13479G7512G3G11G22G12G3G17885G6333電流調(diào)G14422G3132參數(shù)G3G11G23G12G3G7669驗(yàn)G17829G1296G7477G1226G3G22、G17728速環(huán)設(shè)計(jì)G3G11G20G12G3G11842定G7114G19400G5132數(shù)G3G11G21G12G3G17885G6333G17728速調(diào)G14422G3132G13479G7512G3G11G22G12G3G17885G6333G17728速調(diào)G14422G3132參數(shù)G3G11G23G12G3G7669驗(yàn)G17829G1296G7477G1226G3三、MATLAB和SIMULINK簡(jiǎn)介四、SIMULINK環(huán)境中的系統(tǒng)模型、仿真結(jié)果及分析G20、G5332環(huán)直流調(diào)速系統(tǒng)的仿真G3G21、G2345閉環(huán)有靜G5058G17728速G17139反饋調(diào)速系統(tǒng)的建模G994仿真G3G22、G2345閉環(huán)G7092靜G5058G17728速G17139反饋調(diào)速系統(tǒng)的建模G994仿真G3G23、G2345閉環(huán)電流G6142G8502G17728速G17139反饋調(diào)速系統(tǒng)的建模G994仿真G3G24、G2345閉環(huán)電G2399G17139反饋調(diào)速系統(tǒng)的建模G994仿真G3G25、G2345閉環(huán)電G2399G17139反饋和G5114電流G8503反饋調(diào)速系統(tǒng)的建模G994仿真G3G26、G2345閉環(huán)G17728速G17139反饋調(diào)速系統(tǒng)定G18339仿真G3G27、雙閉環(huán)直流調(diào)速系統(tǒng)定G18339仿真G3G28、G989閉環(huán)直流調(diào)速系統(tǒng)仿真G3五、VM雙閉環(huán)直流不可逆調(diào)速系統(tǒng)的電氣原理總圖六、總結(jié)參考文獻(xiàn)一、雙閉環(huán)直流調(diào)速系統(tǒng)的工作原理1、雙閉環(huán)直流調(diào)速系統(tǒng)的介紹雙閉環(huán)調(diào)速系統(tǒng)的工作過(guò)G12255和原理G726電動(dòng)機(jī)在G2563動(dòng)G19466G8585，電動(dòng)機(jī)的實(shí)G19481G17728速G11電G2399G12G1314于給定G1552G15速度調(diào)G14422G3132的G17767入G12483G4396在一G1022G1571G5058G1461G2507，G13475G6930G3835后G17767G1998的電G2399G1457G6357G1038G19492G5145G1552G15速度調(diào)G14422G3132工作在G5332環(huán)G10378態(tài)G15速度調(diào)G14422G3132的G17767G1998電G2399作G1038電流給定G1552G17877入電流調(diào)G14422G3132G15G3G8504G7114G2029以G7380G3835電流給定G1552G1363電流調(diào)G14422G3132G17767G1998G12239G11468G1461G2507G15直流電G2399G17817速上G2331G15電流G1075G19555G2375G3698G3835直G2052等于G7380G3835給定G1552G15G3電動(dòng)機(jī)以G7380G3835電流G5670流G2164速G2563動(dòng)。電動(dòng)機(jī)的G7380G3835電流G11G3593G17728電流G12G2499以通過(guò)整定速度調(diào)G14422G3132的G17767G1998G19492G5145G1552G7481G6925G2476。在電動(dòng)機(jī)G17728速上G2331G2052給定G17728速后G15G3速度調(diào)G14422G3132G17767入G12483的G1571G5058G1461G2507減小G2052G17829于零G15速度調(diào)G14422G3132和電流調(diào)G14422G3132退G1998飽和G10378態(tài)G15閉環(huán)調(diào)G14422G5332始起作用。對(duì)G17139載引起的G17728速G8886動(dòng)G15速度調(diào)G14422G3132G17767入G12483產(chǎn)生的G1571G5058G1461G2507將G19555G7114通過(guò)速度調(diào)G14422G3132、電流調(diào)G14422G3132G7481修G8503觸發(fā)G3132的G12239G11468電G2399G15G1363整流橋G17767G1998的直流電G2399G11468應(yīng)G2476化G15從而G7669G8503和補(bǔ)償電動(dòng)機(jī)的G17728速G1571G5058。另外電流調(diào)G14422G3132的小G7114G19400G5132數(shù)G15G3還能夠?qū)σ螂娋W(wǎng)G8886動(dòng)引起的電動(dòng)機(jī)電樞電流的G2476化進(jìn)行快速調(diào)G14422G15G2499以在電動(dòng)機(jī)G17728速還未G7481得及發(fā)生G6925G2476G7114G15G17817速G1363電流恢復(fù)G2052原G7481G1552G15從而G1363速度更好地G12295定于某一G17728速下G17828行。G32、雙閉環(huán)直流調(diào)速系統(tǒng)的組成G1038了實(shí)現(xiàn)G17728速和電流兩種G17139反饋分別起作用，G2499在系統(tǒng)中設(shè)置兩G1022調(diào)G14422G3132，分別調(diào)G14422G17728速和電流，G2375分別引入G17728速G17139反饋和電流G17139反饋。兩者之G19400實(shí)行嵌套連接，如G3282G20G20所示。把G17728速調(diào)G14422G3132的G17767G1998當(dāng)作電流調(diào)G14422G3132的G17767入，再用電流調(diào)G14422G3132的G17767G1998去控制電力電子G2476換G3132G56PE。從閉環(huán)G13479G7512上G11487，電流環(huán)在里面，稱(chēng)作內(nèi)環(huán)；G17728速環(huán)在外邊，稱(chēng)作外環(huán)。這就G5430G6116了G17728速、電流雙閉環(huán)調(diào)速系統(tǒng)。G3G3282G20G20G17728速、電流雙閉環(huán)直流調(diào)速系統(tǒng)G3其中G726G36SRG17728速調(diào)G14422G3132G3G36CR電流調(diào)G14422G3132G3G55G測(cè)速發(fā)電機(jī)G3G55G36電流互感G3132G3G56PE電力電子G2476換G3132G17728速給定電G2399G3G56NG17728速反饋電G2399電流給定電G2399電流反饋電G2399G33、雙閉環(huán)直流調(diào)速系統(tǒng)的穩(wěn)態(tài)結(jié)構(gòu)圖和靜特性G3282G20G21雙閉環(huán)直流調(diào)速系統(tǒng)的G12295態(tài)G13479G7512框G3282G3分析靜G10317性的關(guān)鍵G7171掌握PG44調(diào)G14422G3132的G12295態(tài)G10317征，一G14336G1363G4396在兩種G10378況G726飽和G17767G1998G17810G2052G19492G5145G1552，不飽和G17767G1998未G17810G2052G19492G5145G1552。當(dāng)調(diào)G14422G3132飽和G7114，G17767G1998G1038G5670G1552，G17767入G18339的G2476化不再影響G17767G1998，除非有反向的G17767入G1461G2507G1363調(diào)G14422G3132退G1998飽和，換句話說(shuō)，飽和的調(diào)G14422G3132暫G7114隔斷了G17767入和G17767G1998的聯(lián)系，G11468當(dāng)于G1363該調(diào)G14422環(huán)G5332環(huán)。當(dāng)調(diào)G14422G3132不飽和G7114，PG44的作用G1363G17767入G1571G5058電G2399G56在G12295態(tài)G7114總G1038零。G3實(shí)G19481上，在G8503G5132G17828行G7114，電流調(diào)G14422G3132G7171不會(huì)G17810G2052飽和G10378態(tài)的。因G8504，對(duì)于靜UNUIUIG10317性G7481說(shuō)，只有G17728速調(diào)G14422G3132飽和G994不飽和兩種情況。G3雙閉環(huán)調(diào)速系統(tǒng)的靜G10317性在G17139載電流小于G1835A1A0G7114G15932現(xiàn)G1038G17728速G7092靜G5058G15這G7114G15G17728速G17139反饋起主G16213的調(diào)G14422作用G15但G17139載電流G17810G2052G1835A2A3G7114G15對(duì)應(yīng)于G17728速調(diào)G14422G3132的飽和G17767G1998G1847A4A5A6G15這G7114G15電流調(diào)G14422G3132起主G16213調(diào)G14422作用G15系統(tǒng)G15932現(xiàn)G1038電流G7092靜G5058G15得G2052過(guò)電流的自動(dòng)G1457護(hù)這就G7171G18331用了兩G1022PG44調(diào)G14422G3132分別G5430G6116內(nèi)、外兩G1022閉環(huán)的效果。然而，實(shí)G19481上G17828算G6930G3835G3132的G5332環(huán)G6930G3835系數(shù)并不G7171G7092窮G3835，因G8504，靜G10317性的兩G8585實(shí)G19481上都略有很小的靜G5058，見(jiàn)G3282G20G22中虛線。G3G3282G20G22雙閉環(huán)直流調(diào)速系統(tǒng)的靜G10317性G34、雙閉環(huán)直流調(diào)速系統(tǒng)的數(shù)學(xué)模型雙閉環(huán)直流調(diào)速系統(tǒng)數(shù)學(xué)模型的建立涉及G2052G2499控硅觸發(fā)G3132和整流G3132的G11468關(guān)內(nèi)容。全控式整流在G12295態(tài)下，觸發(fā)G3132控制電G2399G56CTG994整流G17767G1998電G2399G56A0的關(guān)系G1038G726G3G3其中G726G36整流G3132系數(shù)；G3整流G3132G17767入交流電G2399；G3整流G3132觸發(fā)角；G3觸發(fā)G3132G12239項(xiàng)控制電G2399；G46觸發(fā)G3132G12239項(xiàng)控制斜率；G3整流G994觸發(fā)關(guān)系G1038余弦，工G12255中G17829G1296用線性環(huán)G14422代替觸發(fā)G994G6930G3835環(huán)G14422，G6930G3835系數(shù)G1038G726G46G1847A7A8G1847A9A10。G3繪制雙閉環(huán)直流調(diào)速系統(tǒng)的動(dòng)態(tài)G13479G7512框G3282如下G726G3COSCOS220CTAKUAUAUU2UCTUG3282G20G23雙閉環(huán)直流調(diào)速系統(tǒng)的動(dòng)態(tài)G13479G7512框G3282G3二、系統(tǒng)設(shè)計(jì)方法及步驟1、系統(tǒng)設(shè)計(jì)的一般原則G3概念G9177G7982、易G6038；G3G312G3計(jì)算G1856式G12628G7138、好G16772；G3G313G3不G1177給G1998參數(shù)計(jì)算的G1856式，而G1000指G7138參數(shù)調(diào)整的G7053向；G3G314G3能G13783G15397飽和非線性控制的情況，G2528G7691給G1998G12628G2345的計(jì)算G1856式；G3G315G3G17878用于各種G2499以G12628化G6116G1868型系統(tǒng)的反饋控制系統(tǒng)