分类号毕业设计（论文）题目变电站直流系统分析与设计并列英文题目SubstationDCsystemanalysisanddesign系部电力工程系专业姓名班级指导教师职称论文报告提交日期2011.06.03变电站直流系统分析与设计郑州电力高等专科学校摘要：变电站直流电源系统是给信号设备、保护、自动装置、事故照明、应急电源及断路器分、合闸操作提供直流电源的电源设备。直流系统是一个独立的电源，它不受发电机、厂用电及系统运行方式的影响，并在外部交流电中断的情况下，保证由后备电源—蓄电池继续提供直流电源的重要设备。而本文介绍了220KV变电站直流系统接线方式和额定电压，阐述了蓄电池的分类和影响，蓄电池容量选择的主要因素以及计算。介绍了新型充电装置性能及其选择，UPS不停电电源的选择，通信电源的设计方案。最后确定了变电站直流系统设计的方案。关键词：直流系统设计；变电站；蓄电池；UPS电源；智能型高频开关充电装置Abstract:SubstationDCpowersupplysystemisanequipment,itprovidesDCpowertosignalequipment,protection,automaticequipment,emergencylighting,emergencypowersupplyandcircuitbreakeropeningandclosingoperation.DCsystemisanindependentpowersupply,itcanavoidtheinfluenceofgenerators,auxiliarypowerandsystemoperationmode,andintheexternalACpowerinterruption,assuranceback-uppower-batteryprovidesDCpowertovitalequipment.Thearticledescribesthe220KVsubstationDCsystemwiringandratedvoltage,describedtheclassificationandimpactofstoragebattery,themainfactortoselectstoragebatterandrelevantcount.Atthesametime,itdescribesthefunctionofnewtypeofrechargeabledeviceandhowtoselectit,andhowtoselecttheuninterruptiblepowersupply(UPS),andtheprojectdesignofcommunicationpowersupply.DCtofinalizethesubstationdesignprogram.Keywords:DCPowerSystemDesign;substation;battery;UPSpowersupply;intelligentchargingdevicehighfrequencyswitching.目录前言......................................................................................................1第一章变电站直流系统相关技术分析..................................3第一节变电站直流电源技术分析.............................................31变电站直流系统分析与设计第二节蓄电池技术分析...............................................