【3】Li。W;He,X.z、,T
high-efficiency,higll
step-up
interleavedboostc,onvcl"tcrsforDC DCconversion[J】
ElectricPowerApplications,IET,2007,2(1):284-290.
蛙;
8≮
【4】Lung-ShengYang;Tsomg-Juu
TransformerlessDC-DC
Voltage
Liang;Jiann-Foh
Chert.
ConvertersWithHigll
Step-Up
鎏
GainlJ].1EEE
TranssOil.IndustrialElectronics,
2009,8(56)-3144-3152.【5】R.W.Erickson
and
D.础,simovic,Fundamentals
of
以5m,格)图12m电压应力
Power
Electronics,2耐Edition,Kluwer
Academic
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【6】Q.Zhao,ETao,EC.Lee,只Xu,andJ.Wei.Asimple
and
effective
to
alleviatethe
rectifierreverse-recovery
problemincontinuous-current-modeboostconverter,正EE
蜒
≥瓮¥
Trans.PowerElectron.。v01.16,no.5。PP.649 658。Sep.2001.f7】Barreto,LH.S.C.:Coelho,E.A.A.;Farias,V.J.;deFreitas,
L.C.:Vieira,J.B.。Jr.A
毒
quasi—resonantquadraticboost
converterusing
Specialist
a
single
resonantnetwork.PowerElectronics
Conference,2003.PESC'03.2003lEEE34th
Page(s):595—599v01.2
#(59stN)
AnnualVolume2。15—19June2003
图13D‘电压应力【8】Wuhua
Li;XiaodongLv;YahDcng;JunLiu;Xiangning
of
由实验波形可以看出,在占空比为O.59时,输出电压为lOOV,实现了大变比转换能力。开关管S 、Sz和二极管矾的电压应力分别为71V,29V和29V。二极管D。的电压应力在100V、71V和OV之间变化。主开关管和二极管队的电压应力都低于输出电压,特别是Sz和D4的电压应力非常低,只有29V远远小于输出电压的100V。试验波形验证了理论分析的正确性。5.结论
本拓扑实现了大变比升压能力,适合于输入、输出电压相差悬殊的场合。(如燃料电池发电系统
Hc.ARenewConvertersPower
in
Non-IsolatedHi曲Step-Up
Energy
DC∞C
Renewable
Applications.Appliedand
Exposition,2009.
Feb.2009
ElectronicsConference
APEC2009.Twenty-FourthAnnual
lEEE.5 19
Page(s):364—369.
【9】Luo。EL.;Yc。H.;Positive
output
cascade
boost
converters.ElectricPowerApplications,lEEProceedings
Volume
151。Issue5。9sept.2004Page(s):590-606.
前端DC-DC变换器)。降低了开关器件的耐压等
级,减少了变换器的整体损耗。交错并联技术的使用减少输入电流纹波,提高了变换器的动态响
应速度,并且易于实现变换器的功率等级的扩展,
所以本拓扑十分适合使用在低压大电流输入的应
用场合。
参考文献
[1lMorales—Saldanad.A.;Galarza-Quirino,R
ModefingandControlof
Single
a
et
a1.
a
CascadedBoost
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【2】陆治国,刘小将,李杨,等.带有源浮充平台的新型电
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245
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