Magnetizing-Inductance-Assisted Extended Range Soft-Switching Three-Phase AC-Link Current-Fed DC/DC Converter for Low DC Voltage Applications
Magnetizing-Inductance-Assisted Extended Range Soft-Switching Three-Phase AC-Link Current-Fed DC/DC Converter for Low DC Voltage Applications
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DOI：
10.1109/tpel.2012.2226217
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发表时间：
2013-07
影响因子：
6.7
通讯作者：
P. Xuewei;U. Prasanna;A. Rathore
中科院分区：
文献类型：
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作者：
P. Xuewei;U. Prasanna;A. Rathore
提出了一种利用磁化电感实现宽范围软开关的三相交流环节有源箝位零电压开关（ZVS）电流馈电型直流变换器的新设计，电池，燃料电池等。本文解释了稳态操作，并提出了稳态分析和设计，包括磁化电感效应。该变换器在很宽的负载和电源电压范围内保持所有功率半导体器件的零电压开关。电流共享导致降低的峰值电流和传导损耗。该变换器结合了三相结构与整流二极管零电流开关的优点，使其成为需要高电压放大比的中等功率应用的电源/变换器领域中具有竞争力的拓扑结构。最后给出了PSIM 9.0仿真结果，验证了所提出的分析和设计.额定功率为300 W的实验转换器原型已在实验室中设计、开发和测试，以验证和演示燃料电池应用中输入电压和输出功率变化范围较大时的转换器性能。
This paper proposes a new design with magnetizing inductance to achieve extended range soft switching of a current-sharing three-phase ac-link active-clamped zero-voltage switching (ZVS) current-fed dc/dc converter for low-voltage dc sources, i.e., battery, fuel cells, etc. The paper explains steady-state operation and presents steady-state analysis and design including magnetizing inductance effect. The proposed converter maintains ZVS of all power semiconductor devices over wide range of load and source voltage. Current sharing results in reduced peak currents and conduction losses. The proposed converter combines the merits of three-phase configuration with zero-current switching of rectifier diodes, making it a competitive topology in the area of power supplies/converters for medium power applications requiring high-voltage amplification ratio. Simulation results using PSIM 9.0 are given to verify the proposed analysis and design. An experimental converter prototype rated at 300 W has been designed, developed, and tested in the laboratory to verify and demonstrate the converter performance over wide variations in input voltage and output power for fuel cell applications.