2012~2013学年第2学期《电力电子实训》课程设计报告题目:UPS不间断电源专业:自动化班级:自动化(2)姓名:唐青荣赵怀润指导教师:周松林电气工程系2011年5月12日1、任务书课题名称UPS不间断电源指导教师(职称)周松林执行时间2012~2013学年第一学期第九周学生姓名学号承担任务唐青荣1009111072赵怀润1009111126设计目的1、UPS电源是保障供电稳定和连续性的重要设备2、当UPS电源系统本身出现故障时有自动旁路功能,当需要检修时可采用手动旁路,使检修、供电互不影响设计要求1.给出设计原理框图;2.给出具体设计思路,画出电路图;3.编写设计说明书。摘要UPS(UninterruptiblePowerSystem),即不间断电源,是一种含有储能装置,以逆变器为主要组成部分的恒压恒频的不间断电源。主要用于给单台计算机、计算机网络系统或其它电力电子设备提供不间断的电力供应。当市电输入正常时,UPS将市电稳压后供应给负载使用,此时的UPS就是一台交流市电稳压器,同时它还向机内电池充电;当市电中断(事故停电)时,UPS立即将机内电池的电能,通过逆变转换的方法向负载继续供应220V交流电,使负载维持正常工作并保护负载软、硬件不受损坏。UPS设备通常对电压过大和电压太低都提供保护。电力电子技术的应用范围已经深入到我们呢的日常生活中去了,其中UPS不间断电源就是其中的重要应用范围。此次电力电子课程设计中,对UPS电源的设计就是本次设计的主要内容。随着UPS的广泛使用,在现代社会中的重要性越来越强,使用范围越来越广,目前,UPS在电力电子产品中已占市场相当大的份额,所以这次课程设计对我来说具有非常的实际意义,能从中让我学习许多先进的知识和理论,将所学的知识进行升华,这将有利于我今后的工作。关键词:储能逆变器不间断电源稳压器向负载供电AbstractUPS(UninterruptiblePowerSystem),namelytheuninterruptiblepowersupply,isakindofenergystoragedevice,uninterruptiblepowersupplyvoltageandfrequencyofthemainpartoftheinverter.Mainlyusedforpowersupplytoasinglecomputer,computernetworksystemorotherpowerelectronicequipmenttoprovideuninterrupted.Whenthepowerinputisnormal,UPScityelectricityvoltagesupplytoload,theUPSisanACvoltageregulator,atthesametimeitalsotothemachinebatterycharging;whenthepoweroutage(outage),UPSwillimmediatelybuilt-inbatterypower,continuetosupply220Valternatingcurrenttotheloadbythemethodofinversetransformation,theloadtomaintainthenormalworkandprotecttheloadofsoft,hardwaredamage.UPSdevicesareoftenlargeandthevoltageistoolowtoprovideprotectionforallvoltageApplicationofpowerelectronictechnologyhaspenetratedintoourdailylifeinLondon,whereUPSuninterruptiblepowersupplyisoneoftheimportantapplications.Powerelectronicscoursethisdesign,designofUPSpoweristhedesignofthemaincontent.WiththewideuseofUPS,inthemodernsocietyisbecomingmoreandmorestrong,used,currently,UPShasaccountedforalargeshareofthemarketinelectricandelectronicproducts,sothecurriculumdesignhaspracticemeaningtome,letmelearnalotfromtheadvancedknowledgeandtheories,tolearntheknowledgeofsublimation,whichwillbehelpfulforourfuturework.Keywords:energystorageinverteruninterruptiblepowersupplyvoltagetotheloadpowersupply插图清单图2-1静态UPS典型框体.............................................................................错误!未定义书签。图3-1UPS不间断电源电路图.......................................................................................................4图3-2整流/充电器主回路电路图................................................................................................5图3-3逆变电路...............................................................................................错误!未定义书签。图3-4旁路电源转换开关..............................................................................................................9插表清单表3-1电路图器件清单...................................................................................................................4目录第一章概绪..............................................................................................................................11.1UPS的发展历程................................................................................................................11.2UPS的发展前景................................................................................................................2第二章系统整体设计方案.............................................................................................................32.1负载间断供电的原因........................................................................................................32.2系统总体设计原理.............................................................................................................32.2.1总体设计原理框图.................................................................................................3第三章单元电路设计....................................................................................................................43.1整流/充电电路设计...........................................................................................................53.1.1整流/充电器主回路设计.........................................................................................53.1.2晶闸管的要求..........................................................................................................63.1.3滤波电抗器、电容及选用......................................................................................63.2逆变电路设计....................................................................................................................63.3旁路电源.............................................................................................................................8第四章心得与体会....................................................................................................................10参考文献......................................................................................................................................111第一章概绪自从电子设备特别是计算机问世以来,电源问题一直是人们十分关心的问题。且对于一些特殊位置的重要设备,人们不但关心其供电电源本身的性能指标更注重供电电源的质量,即供电的稳定性和不间断性。因为这些设备的电源一旦出现不稳定或者消失,就将造成非常大的损失,甚至无可挽回的损失。所幸的是不间断电源UPS(UninterruptiblePowerSystem)的出现,为解决这个问题提供了广阔的前景。1.1UPS的发展历程最初的UPS是本世纪六