第46卷第1期2023年2月电子器件ChineseJournalofElectronDevicesVol.46No.1Feb.2023收稿日期:2021-08-03修改日期:2022-01-10Single-Switch,High-Boost-RatioDC-DCConverterwithLowVoltageStressZHAOXiumin*,YUJiangtao,JIANGJingjing,LINan(StateGridShanghaiInformation&CommunicationCompany,Shanghai200072,China)Abstract:Asingleswitch,highvoltageboost,nonisolatedDC-DCconverterforrenewableenergyapplicationsisintroduced.Theproposedconverterconsistsofacouplinginductor,apassiveclampcircuit,aswitchedcapacitorandaboostcircuit.Thepassiveclampcircuitcanrecovertheleakageenergyofthecouplinginductorandlimitthevoltagespikeontheswitch.Inaddition,theeffectiveintegrationofpas-siveclampandswitchedcapacitorcircuitincreasesthevoltagegain.Inshort,wideCCMoperatingrange,lowturnratioofcouplinginduc-tor,lowvoltagestressonswitch,nearzerocurrentswitch(ZCS),lowvoltagestressondiode,energyrecoveryofleakageinductor,andhighvoltagegainatlowdutycyclearetheadvantagesoftheconverter.Thesteady-stateoperationoftheconverterinCCMandDCMisdis-cussedandanalyzed.Finally,a200Wprototypeisbuilttoverifythecorrectnessandfeasibilityofthetheoreticalanalysis.Keywords:couplinginductor;highvoltagegain;singleswitch;switchingcapacitorEEACC:8360doi:10.3969/j.issn.1005-9490.2023.01.022具有低电压应力的单开关、高升压比DC-DC变换器赵修旻*,余江涛,蒋婧婧,李楠(国网上海市电力公司信息通信公司,上海200072)摘要:提出一种适用于可再生能源应用场景的单开关、高升压、非隔离式DC-DC变换器。所提变换器由耦合电感、无源钳位电路、开关电容和升压电路组成。无源钳位电路可回收耦合电感的漏感能量,并限制开关管上的电压尖峰。此外,无源钳位和开关电容电路的有效整合增加了电压增益。简言之,宽连续导通模式(CCM)工作范围、耦合电感的低匝数比、开关上的低电压应力、近似零电流开关(ZCS)、二极管上的低电压应力、漏电感能量回收、和低占空比下的高电压增益是该变换器的优点。讨论和分析了变换器在连续导通模式(CCM)和非连续导通模式(DCM)下的稳态运行。最后,搭建了200W的实验样机来验证所提变换器理论分析的正确性和可行性。关键词:耦合电感;高电压增益;单开关;开...