转速电流双闭环不可逆直流调速系统.doc

转速、电流双闭环不可逆直流调速系统摘要：文章阐述了转速、电流双闭环不可逆直流调速系统的构成，说明了转速环和电流环的任务、工作要求和组成，对主回路、励磁回路、控制回路的具体构建和各单元功能做了详细描述。结合设计要求对系统进行了动态校正和涉及工作过程的图文分析。转速、电流双闭环控制的直流调速系统是应用最广性能很好的直流调速系统。系统大量采用了集成器件，具有集成度较高，投资少，反应灵敏迅速，符合实际需要，使用安全和方便，出故障时易及时察觉和排除等多重优点。本系统是以晶闸管供电的直流调速系统，文章介绍了双闭环直流调速模块的构成和特性；还说明了直流调速的应用、器件的选择和保护。关键词：不可逆直流调速；转速环；电流环Speedandcurrentbiclosed-loopnonreversibleDCadjustingsystemAbstractThearticleexpoundsthemake_upofSpeedandcurrentbiclosed-loopnonreversibleDCadjustingsystem，accountclearlythemission、workrequestandcomposeofSCR，alsogetssomeclearelaborationaboutmaincircuit、excitationloop、controlloopforconcretioncomposeconstructandeachcellfunction.Inthemeanwhile,thearticleexpoundsproceededinflightcorrectionandtouchonworkingprocessbothchartandcharacteranalyses,whichbindstheprojectdemand.Thecontrolcircuitadoptstwoclosedloopsbothcurrentandspeedgoverningsystem，whichisrepresentative.Thesystememploysslatherintegratedcomponent,sothat,thesystempresentsmultiplemerit,notonlytakesonthehigherintegratedlevel,investfewness,thedelicacypromptitudereflectiont，inneedoftruthfulnessdemand，usesecurityandconvenience，butaslohaveascrewlooseeasylyperceiveandsuppressionintime.ThebasisofthyristorDCspeedregulationsystem,thearticlepresentstheformationandcharacteristicsofdoubleclosed-loopDCspeedregulationmodule;inshowstheapplication,choiceandprotectioninDCspeedregulation.Keywords：thenonreversibleDCadjustingsystem；speed-loop；current-loop目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc137395086"1绪论PAGEREF_Toc137395086\h1HYPERLINK\l"_Toc137395087"2设计方案的确定PAGEREF_Toc137395087\h2HYPERLINK\l"_Toc137395088"2.1系统主回路方案的初步确定PAGEREF_Toc137395088\h4HYPERLINK\l"_Toc137395089"2.2系统控制回路方案的初步确定PAGEREF_Toc137395089\h6HYPERLINK\l"_Toc137395090"3系统主回路设计和主要参数计算及器件选择PAGEREF_Toc1373