资源描述：
《动车组传动与控制》复习题（ReviewofEMUdriveandcontrol）》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、动车组传动与控制》复习题(ReviewofEMUdriveandcontrol)ReviewofEMUdriveandcontrolFirstreviewquestionFillintheblanks1,ThedrivingmodesoftheEMUincludethestraighttransmissionmodeandthetransmissionmodeofintersectionandintersection.2,fromthedevelopmenttrend,thefutureofthemainrailtractionwillmainlyusevoltagetypeAC一
2、DCconverterpowersupplyasynchronousmotorsystem.3,highvoltageelectricalequipmentcompletestheconnectionanddisconnectionfromcontactwiretotractiontransformer・Mainlyinclude:pantograph,maincircuitbreaker,lightningarrester,currenttransformer,groundingprotectionswitch・4,themainfactordeterminingthebasic
3、resistaneeisthesizeoftheoperationspeed・Themechanicalresistanceisproportionaltotherunningspeed,whiletheairresistanceisproportionaltothesquareofthevelocity・5,thetraintractionpowerismainlyrelatedtothemaximumtrainspeed,trainquality,themaximumspeedofthetrainrunningresistanceandresidualacceleration,
4、geartransmissionefficiency,tractionmotorefficiency・Two,multiple-choicequestions1,thetrainspeedis200hm/h,theairresistanceisabout80%,andwhenthespeedreaches300hm/h,theairresistaneeaccountsfor(C)aboveA,50%B,80%C,95%D,100%2,no-loadoperation,thetransformerprimarywindingandthetwowindingvoltageratiois
5、equaltothefirstandtwowinding(B).A,currentratio,B,turnsratioC,reciprocalratioofturnstoD,linediameterratio3,thegeneraltransformeradoptssiliconsteelorotherhighpermeabilityalloymateria1.Athigherfrequencies,ferriteisoftenusedtoreduce(A)thecore・A,eddycurrentlossB,hysteresislossC,dielectriclossD,volt
6、ageloss4,TheprimarywindingofthetransformerisconnectedtotheACpowersupply.Whenthetwowindingisconnected(D),thecurrentflowsthroughthetwowinding,whichiscalledtheloadoperationofthetransformer・A,loadresistorB,inductanceC,capacitanceD,loadimpedanceZL5,CRH1typeEMUisequippedwith(C)maintransformer,usingt
7、hehearttypestructure,carbodyhangingdown,forcedoilcirculationair-cooledmode.A,1setsofB,2setsofC,3setsofD,4setsThree、judgmentquestions1、tractioninverteristhepowersupplysideconverteroftractiondrivesystem・Whenthetrainispulledasarectifier,th
