High-Efficiency High-Power Bridgeless Integrated AC-DC Converter for On-Board Vehicle Battery Charger

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI:10.1109/APEC39645.2020.9124092

Minglong Wang, S. Pan, Jinwu Gong, Wenqiang Lin, Yumei Li, X. Zha

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引用次数: 2

Abstract

In order to design a high-efficiency, cost-effective, high-power on-board vehicle battery charger for supplying electric vehicles, a novel bridgeless, soft switched integrated AC–DC converter is proposed. The proposed converter can realize the ZVS operation of the power factor correction (PFC) circuit’s power switches by sharing MOSFET switches of PFC circuit and full-bridge LLC resonant converter. Different from previous quasi-single-stage integrated AC–DC converter [7]– [12], the topology’s stable output voltage and the bus voltage can be simultaneously independently achieved. Moreover, the proposed converter possesses with intrinsic voltage-doubler PFC characteristic, which is suitable for high output voltage applications. The detailed operation principles for the proposed converter are analyzed and discussed. The feature of the proposed topology was demonstrated using PSIM simulation and a hardware prototype. The experimental results showed the converter achieves full-range ZVS for primary switches and the efficiency of 94.5% under the 110 V input voltage.

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车载电池充电器的高效大功率无桥集成交直流变换器

为了设计一种高效、经济、大功率的车载电池充电器，为电动汽车供电，提出了一种新型的无桥软开关集成交直流变换器。该变换器通过共享功率因数校正(PFC)电路的MOSFET开关和全桥LLC谐振变换器，实现功率因数校正(PFC)电路功率开关的ZVS操作。与以往的准单级集成AC-DC变换器[7]-[12]不同，该拓扑可以同时独立实现稳定的输出电压和母线电压。此外，该变换器具有固有的倍压PFC特性，适合于高输出电压的应用。对该变换器的具体工作原理进行了分析和讨论。通过PSIM仿真和硬件原型验证了所提出拓扑的特性。实验结果表明，该变换器在110 V输入电压下实现一次开关全量程零电压转换，效率为94.5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 IEEE Applied Power Electronics Conference and Exposition (APEC)

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