伍群芳

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副研究员 博士生导师

招生学科专业:
电气工程 -- 【招收博士、硕士研究生】 -- 自动化学院
能源动力 -- 【招收博士、硕士研究生】 -- 自动化学院

主要任职:副主任

性别:男

毕业院校:南京航空航天大学

学历:南京航空航天大学

学位:工学博士学位

所在单位:自动化学院

办公地点:自动化学院2栋509室

联系方式:电话:18179631212 邮箱:wuqunfang@nuaa.edu.cn

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ZVS three-phase current-fed push-pull converter employing a simple active-clamp circuit for voltage step-up applications

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所属单位:自动化学院

发表刊物:IET Power Electron.

摘要:In this study, a new zero-voltage-switching (ZVS) three-phase current-fed push-pull converter is proposed for voltage step-up applications such as interfacing between the low-voltage high-current input sources such as photovoltaic, fuel cells and high-voltage dc bus. The proposed converter realises ZVS for all of the primary switches and zero-current-switching for secondary diodes that improves the conversion efficiency. In comparison with the existing three-phase current-fed push-pull converters with a voltage-clamped, one simpler active-clamp circuit is employed to reuse the leakage inductance for softcommutation and suppress the transient surge voltage enabling the use of low voltage-rated switches with low on-state resistance. The theoretical analysis, design guidelines, comparative study, experimental results and loss breakdown for this topology are presented in the text. Finally, a 1.2 kW prototype has been implemented and tested in the laboratory to verify the effectiveness of the proposed concept. © The Institution of Engineering and Technology 2018.

ISSN号:1755-4535

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发表时间:2018-11-27

合写作者:伍群芳,王勤,Li, Jinbo,王中叶

通讯作者:伍群芳