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1、大連海事大學碩士學位論文高功率因數恒流調光IGBT逆變UPS姓名:錢勇申請學位級別:碩士專業(yè):電力電子與電力傳動指導教師:王天序2003.3.1,摘要/UPS是英文UninterruptiblePowerSupply的縮寫,即不間斷電源,其簡稱為UPS。UPS不僅僅是一個備用電源,它還具備電力凈化的功l___-_-___一算機、各種辦公設備、精密電子儀器的普及,UPS得到了廣泛的應用。人們習慣將著計作為本課題的主體,高功率因數恒流調光IGBT逆變UPS(以下簡稱恒流UPS)具有其區(qū)別于普通UPS的獨特之處:l、實現(xiàn)電網側的高功率因數2、電
2、源輸出為分級恒流(從零負載到額定負載)。本文主體分為七個章節(jié)來對恒流UPS進行解析說明。第一章概述UPS的功能及工作原理,并就恒流UPS進行簡單介紹。第二章主要闡述了恒流UPS在市電供電時的工作原理,解釋了其能實現(xiàn)電網側高功率因數的原因。第三章重點講的是恒流UPS在市電出現(xiàn)故障時如何實現(xiàn)恒流不問斷供電的。第四章主要介紹的是蓄電池及其充電回路,作為UPS的心臟,蓄電池占有舉足輕重的地位。第五章簡要介紹了靜態(tài)開關及其控制電路,靜態(tài)開關是UPS市電供電和逆變器供電之間相互轉換的橋梁。第六章著重對IGBT的翌墊鯊赳直路進行了說明。第七章為對恒流U
3、PS進行的調試總結。、I/√關鍵詞:高功率因數;恒流:IGBT,UPS足K隨瞅y一AbstractUPSistheabbreviationofUninterruptiblePowerSupply,orpowersupplywithoutinterruption.IngeneralpowersupplieswithsuchcharacteristicarenamedUPS.UPSisnotonlyasparepowersupply,butalsoonewiththeabilitytofilterthepowerinput.Withthede
4、velopmentandapplicationofcomputers,v碰ousofficeequipmentandelectronapparatus,UPSisputintousewidely.Astheobjectofthetask,UPSinvertedbyIGBTwithconstantcurrentadjustingandhighpowerfactorfabbreviatedto唧withconstantcurrent)isknownfromothersby:1、hi曲powerfactorastothepowersystem2
5、、constantcurrentoutputatdifferentlevelaccordingtothedemand(fromzeroloadtoratingload).ThetextisdividedintosevenchapterstodealwiththeUPSwithconstantcurrent.ChapterOnesummarizesthefunctionsandtheoryofUPS,introducingtheUPSwithconstantcmentbriefly.ChapterTwoexpatiatemainlythef
6、unctionprincipleoftheUPSwithconstantcurrentastheelectricpowerisavailable,interpretinghowtheUPScanrealizehi曲powerfactor.ChapterThreeexplainshowtheUPSwithconstantcurrentsupplythepower,船theelectricpowerisnotavailable.ChapterFourchieflytellsofaccumulatoranditschargingcircuit.
7、AstheheartofLIPS,accumulatoroccupiesthepositionsecondtonone.ChapterFiveintroducessimplythestaticswitchanditscontrolcircuit.Staticswitchisthebridgebetweenelectricpowersupplyandaccumulatorsupply.ChapterSixmakesoutthedriveandcontrolcircuitofIGBT.ChapterSevensumsupthetestingr
8、esultoftheUPSwithconstantcurrent.Keywords:HighpowerfactorConstantcurrentIGBTUPS¨第1章UPS概述隨著電子技術的飛