三段桥式半控整流装置的研究与设计

-I-摘要随着我国工业和经济的发展，电力电子器件的应用取得了突飞猛进的发展，同时对电力电子技术的应用和创新也在不断的提高。电力电子技术是应用于广泛领域最活跃的技术，并使用电力电子器件及其技术对电能进行变换和控制。直流整流器是以电力电子技术为基础发展起来的。它是利用电力电子技术的基本特点之一：以小信号输入控制很大的功率输出，放大倍数极大，这就是电力电子设备成为强、弱电之间的接口基础。利用这一特点能获得节能、高产、高效、高可靠性、安全的良好效益。本设计主要介绍三段桥直流整流电路及其工作原理、波形、参数计算，并根据参数值选择所用晶闸管、二极管等设备。其次介绍了晶闸管的触发电路和构成触发电路的各个环节的工作状况，以及相对于主电路的各种保护电路的设计及其参数的计算，并且根据所算出的各种参数值确定所用器件的额定值，最后通过MatlabSimulink进行仿真。关键词：电力电子技术；晶闸管；三段桥；整流器；MATLAB-II-AbstractWiththerapiddevelopmentofourcountry’sindustryandeconomy,theelectricityusedinthedevicecontinuouslyincreased,Meanwhilethepowerelectronicstechnologyapplicationsandinnovationsbeingconstantlyimproved.Powerelectronicstechnologyhasbeenappliedtothefieldofelectricpowertechnologyistheuseofelectricitytopowerelectronicdevicesforthetransformationandcontroltechnologyoperation.Thedirectcurrentrectifierisdevelopedonbasisofthepowerelectronictechnology.Itisoneofthepowerelectronictechnologyessentialfeatures:Bythesmallsignalinputcontrolverybigpoweroutput,theenlargementfactorisenormous,thisiswhythepowerelectronicinstalledbetweenthestronglyandweaknessasaconnection.Onecanobtaintheenergyconservationthatthehighproduction,highlyeffective,redundantreliabilityandthesafegoodbenefitbytheuseofthischaracteristic.PresentationonthedesignofthemainbridgeDCrectifiercircuitanditsworkingprinciples,waveform,parametercalculation,andinaccordancewithchoiceofparametervaluesusedbythethyristor,diodesandotherdevices.Secondonthetriggerthyristorcircuitandatriggercircuitinthevarioussegmentsofworkingconditions,aswellasinrelationtothemaincircuitprotectioncircuitdesignandthecalculationofparameters,andinaccordancewiththecalculatedvaluesoftheparametersdeterminedbythedevicesrating.Keywords：Powerelectronictechnology，Threebridge，Rectifier，MatlabIII目录摘要.....................................................................................................................................IAbstract.....................................................................................................................................II1绪论........................................................................................................................................11.1电力电子技术的发展.................................................................................................11.2课题研究意义及其背景.............................................................................................11.3我国电力机车发展史.................................................................................................21.4本文研究内容与目标.................................................................................................42电力电子器件........................................................................................................................62.1电力电子技术概述.....................................................................................................62.1.1电力电子器件的发展.......................................................................................62.2电力电子器件的应用..................................................................................................72.3晶闸管.........................................................................................................................92.3.1晶闸管的结构与工作原理...............................................................................92.3.2晶闸管的基本特性........................................................................................112.3.3晶闸管的主要参数.........................................................................................142.3.4晶闸管变流装置的优缺点及其应用.............................................................153可控整流电路......................................................................................................................183.1整流电路概述...........................................................................................................183.2单相整流电路...........................................................................................................193.2.1单相半波可控整流电路................................................................................193.2.2单相桥式全控整流电路................................................................................203.2.3单相全波可控整流电路................................................................................213.2.4单相桥式半控整流电路................................................................................223.3三相可控整流电路....................................................................................................233.3.1三相半波可控整流电路.................................................................................233.3.2三相桥式全控整流电路................................................................................253.4电力机车中三段半控桥整流电路...........................................................................263.4.1三段半控桥移相控制....................................................................................313.4.2三段半控桥控制原理....................................................................................333.5脉冲触发电路................................................................................