Design and implementation of a 1.3 kW, 7-level flying capacitor multilevel AC-DC converter with power factor correction
Design and implementation of a 1.3 kW, 7-level flying capacitor multilevel AC-DC converter with power factor correction
复制标题
具有功率因数校正功能的 1.3 kW、7 级飞跨电容多电平 AC-DC 变换器的设计与实现
DOI：
10.1109/apec.2017.7930674
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
R. Pilawa
中科院分区：
文献类型：
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作者：
Intae Moon;Carl Haken;Erik K. Saathoff;E. Bian;Y. Lei;Shibin Qin;Derek Chou;S. Sedig;Wonho Chung;R. Pilawa
这项工作提出了一种基于 7 级飞跨电容器多电平转换器的 1.3 kW 单相 AC-DC 转换器，具有功率因数校正功能。该拓扑的特点是在有源电路复杂性与磁性元件尺寸大幅减小的同时保持高效率。在这项工作中，我们通过理论分析和硬件原型演示了这些功能。经实验证明，该原型机可在 90-230 VRMS 的通用交流输入、47-63 Hz 的频率下工作，输出电压为 400 V，箱体功率密度为 1.21 W/cm3 (19.8 W/in3)，峰值效率为 97.6%。该原型首次成功演示了 7 级飞跨电容器多级升压拓扑作为 AC-DC 转换器，具有完全实现的数字 PFC 控制和通过通用交流输入进行自供电启动。
This work presents a 1.3 kW, single phase, AC-DC converter with power factor correction based on a 7-level flying capacitor multilevel converter. The topology features a tradeoff of active circuit complexity for dramatic reduction on the magnetic component size, while maintaining a high efficiency. In this work, we demonstrate these features through theoretical analysis as well as a hardware prototype. It has been experimentally demonstrated that the prototype can operate at an universal AC input from 90–230 VRMS and frequencies from 47–63 Hz with an output voltage of 400 V, achieving a box power density of 1.21 W/cm3 (19.8 W/in3) and a peak efficiency of 97.6%. This prototype is the first successful demonstration of a 7-level flying capacitor multilevel boost topology as an AC-DC converter with fully implemented digital PFC control and self-powered start-up from a universal AC input.