A New PFC CCM Boost Rectifier with Extended Gain and Reduced Voltage Switching for 1-ph/3-ph Universal Input On-Board Charger for Electric Vehicles

2021 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2021-06-14 DOI:10.1109/APEC42165.2021.9487021

T. Sadílek, Y. Jang, S. Hao, Minli Jia, P. Barbosa, I. Husain

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引用次数: 5

Abstract

A new power-factor-correction (PFC), continuous-conduction-mode (CCM) bidirectional boost rectifier for 1-ph/3-ph universal voltage input on-board charging applications is introduced. The rectifier features extended voltage gain, automatic input current sharing, and reduced voltage switching when it operates from 1-phase input voltage. Due to the extended-gain property, the proposed topology is suitable for converting low line voltages to a high dc link voltage. Switching at reduced voltage results in decreased switching losses, which allows the converter to achieve significantly increased power conversion efficiency. Unlike in standard interleaved PFC topologies, input current sharing is achieved without any sensing circuits or additional control loops. The evaluation was performed on a 3.3 kW prototype designed to operate from 85-134 V line input and deliver 775 V dc output. The prototype achieves 93.6% efficiency at 110 VRMS line input and full load. The proposed converter naturally morphs into the standard 6-switch converter for 3-phase ac voltage inputs.

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一种新的PFC CCM升压整流器，具有扩展增益和降低电压开关，用于电动汽车上的1 ph/3 ph通用输入车载充电器

介绍了一种新型功率因数校正(PFC)连续传导模式(CCM)双向升压整流器，适用于1-ph/3-ph通用电压输入的车载充电应用。整流器具有扩展电压增益，自动输入电流共享，并在单相输入电压下工作时减少电压切换。由于扩展增益特性，所提出的拓扑结构适用于将低线路电压转换为高直流链路电压。在较低的电压下进行开关，可以减少开关损耗，从而使变换器实现显著提高的功率转换效率。与标准的交错PFC拓扑不同，输入电流共享是在没有任何传感电路或额外的控制回路的情况下实现的。评估是在一个3.3 kW的样机上进行的，该样机设计在85-134 V的线路输入和775 V的直流输出下工作。样机在110 VRMS线输入和满载时效率达到93.6%。所提出的转换器自然演变成标准的6开关转换器，用于三相交流电压输入。

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2021 IEEE Applied Power Electronics Conference and Exposition (APEC)

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