矿井提升机直流调速系统仿真设计

洛阳理工学院毕业设计（论文）I矿井提升机直流调速系统设计摘要矿井提升机也称矿井卷扬机，是生产过程中的大型关键设备，也是井上和井下的唯一输送通道。提升机主要用于升降人员和矿石、煤炭等，其性能和安全可靠性直接影响着煤炭、矿石的生产及作业人员的生命安全，一旦发生事故必然导致人员伤亡和设备的严重损坏，造成重大的经济损失。因此，素有“矿山咽喉”之称。矿井提升机种类繁多，按照井道结构分，有立井与斜井；按照传动电机分为交流传动和直流传动；按容器功能分，则有箕斗和罐笼；按钢丝绳结构方式分，则有单绳和多绳摩擦轮提升机；按矿井功能分为主井(输送矿产品)与副井(输送人员与材料等)；按提车点的多少分为单水平和多水平提升机。纵观电气传动系统的发展历程，它经历了从恒速到调速，从低性能到高性能，从单机独立运行到多机系统控制等发展过程。随着技术的发展，矿井提升机对电气传动在起制动、正反转以及调速精度、调速范围、静态特性、动态响应等方面都提出了更高的要求，这就要求大量使用调速系统。在工程实践中多有许多生产机械要求在一定的范围内进行速度的平滑调节，并且要求有良好的静、动态性能。本文中讲到的主要是矿井提升机的双闭环直流调速系统。关键词：矿井提升机，直流调速，双闭环系统，动态性能洛阳理工学院毕业设计（论文）IIMinehoistdoubleloopDCspeedcontrolsystemABSTRACTMineelevatoralsosaidtheminehoist,isalarge-scaleproductionprocesskeyequipmentandtheonlyabovegroundandundergroundtransmissionchannel.Itwasmainlyusedforliftingpersonnelhoistandore,coal,performanceandreliabilityofitsdirectimpactonthecoal,oreproductionandthelivesofworkers.Incaseofaccidentswillinevitablyleadtocasualtiesandseriousdamagetotheequipment,miningnormalproductionInterrupted,resultinginsignificanteconomiclosses,knownasminethroat.Awiderangeofminehoist,shaftstructureinaccordancewithpoints,ashaftandshaft;inaccordancewiththedrivemotorpointsfortheACdriveandDCdrivemachine;featurepointsbythecontainer,thereareskipandcage;bywayofsub-ropestructure,theAsingleropeandhoistFrictionwheel:functionpointsbythemainmineshaft(transmissionminerals)andtheauxiliaryshaft(transportationofpersonnelandmaterials,etc.);pointbymentioninghowmanycarsaredividedintosingle-levelandmulti-levelelevator.Throughoutthecourseofdevelopmentofelectricdrivesystems,ithasundergonefromtheconstantspeedtothespeed,fromlowperformancetohighperformance,fromsingletomulti-machinesystemindependentlycontrolthedevelopmentprocess.Astechnologyadvances,theeffectoftheelectrictransmissionbrake,reversingandspeedcontrolaccuracy,speedrange,thestaticcharacteristics,dynamicresponse,haveputforwardhigherrequirements,whichrequiresextensiveuseofspeedcontrolsystem.Inengineeringpracticetherearemanymorerequirementsofproductionmachinerywithinacertainspeedramp,andrequiresgoodstaticanddynamicperformance.MentionedinthisarticlearemainlyofminehoistDoubleloopDCspeedcontrolsystem.KEYWORDS:minehoist，DCconverter，double-loopsystem，dynamicperformance洛阳理工学院毕业设计（论文）III目录前言................................................................................................1第1章矿井提升机简介...................................................................31.1国内外提升机研究状况.......................................................31.2矿井提升机的组成及分类...................................................51.2.1科技名词定义.............................................................51.2.2矿井提升机的组成.....................................................61.2.3矿井提升机的分类.....................................................7第2章矿井提升机直流调速系统简介............................................82.1晶闸管-电动机直流调速系统简介......................................82.2单闭环调速系统简介...........................................................92.2.1系统的组成.................................................................92.2.2系统的工作原理.......................................................102.2.3单闭环调速系统的基本性质....................................112.3双闭环调速系统简介.........................................................112.3.1双闭环调速系统的构成............................................112.3.2双闭环调速系统的稳态结构及其静态特性.............132.3.3双闭环调速系统的动态特性....................................162.3.4双闭环调速系统的动态分析....................................17第3章矿井提升机直流双闭环调速系统方案确定......................203.1总体方案.............................................................................203.2电流环设计方案.................................................................213.2.1电流调节器的工作原理............................................213.2.2电流调节器的作用...................................................213.3转速环设计方案.................................................................223.3.1转速调节器的工作原理............................................223.3.2转速调节器的作用...................................................22第4章提升机双闭环直流调速系统——调节器设计..................244.1电流调节器.........................................................................24洛阳理工学院毕业设计（论文）IV4.1.1电流调节器结构的选择............................................244.1.2电流调节器设计.......................................................254.2转速调节器.........................................................................264.2.1转速调节器结构的选择............................................264.2.2转速调节器设计.......................................................26第5章提升机双闭环调速系统典型电路环节简析......................29第6章提升机调速系统MATLAB仿真........................................316.1系统的建模与参数设置.....................................................316.1.1直流电动机的数学模型............................................316.1.2转速电流双闭环调速系统的数学模型....................316.1.3建立仿真模型...........................................................326.2仿真结果.............................................................................33结论..............................................................................................35谢辞....................................................