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1、UPS电源设计摘要随着计算机技术、网络技术、通信技术的发展,国民经济、国防军工、政府部门的各个领域要保障计算机信息网络系统的安全、可靠运行,就离不开UPS不间断电源,这已成为信息业界乃至各行各业的共识。根据UPS不间断供电的原理,以提高UPS的可靠性为基本点,从UPS电源装置的结构和形式来考虑其设计方案。整个UPS主电源装置由整流/充电器、逆变器、静态旁路、维修旁路等部分组成。整流/充电器(包括蓄电池)为UPS提供在线工作的能量输入;逆变器为UPS提供在线工作的高质量的稳压稳频的交流电输出;静态旁路为UPS在整流/充电器或者逆变器故障情
2、况下提供旁路工作电源,逆变器供电和静态旁路供电之间可实现不间断供电切换;维修旁路为UPS定期检修或故障维修时提供旁路电源。UPS主要分为,UPS运行方式部分,开关电源部分和电压逆变部分,且每一部分都有其典型的控制芯片组成。论文中的UPS电路简单的体现了UPS电源的基本功能,实现DC-AC的逆变过程,最终实现频率50HZ的220V交流电压输出。关键字:UPS电源,断电续用,电力电子,智能网络化,在线式IVThedesignofUninterruptiblePowerSystemAbstract:Withthedevelopmentofth
3、ecomputertechnology,thenetworktechnology,communicationtechnology,inallthefieldsofthenationaleconomy,nationaldefenseandwarindustry,governmentministries,theymustdependonUPS(UninterruptiblePowerSystem)BytheprincipleofUPS,thispaperconsidersthedesignschemefromitsstructureandf
4、ormatforincreasingitsreliability.Themainpowerdeviceismadeupofrectifier,charger,inverter,staticbypass,maintenancebypass.Rectifierandcharger(includingstoragebattery)offertheenergyinputofUPSwhenitisonline.InverterofferstheCVCF(ConstantVoltageandConstantFrequency)ACoutputwhe
5、nUPSisonline.Staticbypassoffersonlinebypasspowersupplywhenrectifier,charger,orinverterresultsinfaults,andtheswitchingbetweeninverterandstaticbypassisnotinterruptible.MaintenancebypassoffersbypasspowersupplywhenUPSneedsrepairingorMaintaining.Basedonthedevelopmenttrendofhi
6、gherfrequency,modularization,digitalization,andgreennessforpowertechnology,thispaperisrelevanttotherecentdevelopmentofmodempowerelectronicstechnologyandinformationprocessingtechnology,andhasstudiedtheabovemiddlecapacity(Above10KVA)onlineintelligentUPS,usingmicroprocessor
7、ascorecontrol.IdesignmainlydividedintotheUPS,UPSoperationpart,switchingpowersupplyandvoltageinverterpart,andeachparthasitstypicalcontrolchip.TheUPScircuitIdesignedsimplyreflectedthebasicfunctionofUPSpowersupply,toachieve7v-220voltageconversion,DC-ACinverterprocess,finall
8、yrealizesthe220vACvoltageandfrequencyof50hertzoutput.Keyword:UPSpowersupply,powerwillcontinuetouse,powe