所属单位：自动化学院
发表刊物：IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
关键字：Active-clamped current-fed fuel cell application push-pull converter wide-range ZVS
摘要：This paper proposes a wide-range zerovoltage- switching (ZVS) active-clamped current-fed push-pull converter for fuel cell application. The presented converter achieves ZVS for all of the primary switches and ZCS for secondary diodes from rated load to 10% full load over the wide input voltage variation, improving the overall efficiency. The ZVS of switches is realized by the energy stored in the transformer leakage inductance aided by the secondary parallel inductor. An additional active clamping circuit suppresses the voltage spike as well as assists in realizing ZVS of switches. Low-voltage-rated switches with low on-state resistance can be used. Moreover, the voltage-doubler rectifier is adopted to release the reverse-recovery problem of rectifier diodes and reduce turns ratio of the high-frequency transformer. Detailed steady-state operation, analysis, design, control, comparative study, and experimental results are discussed in depth in this paper. Finally, a 200-W prototype has been built in the laboratory to verify the effectiveness of the proposed converter.
ISSN号：0278-0046
是否译文：否
发表时间：2017-10-01
合写作者：Wu, Qunfang,Xu, Jialin,肖岚
通讯作者：Wu, Qunfang,王勤
发表时间：2017-10-01