A Soft Switching Single Stage Isolated Three Phase Bidirectional PFC Converter for Electric Vehicles charging

2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI:10.1109/NAPS46351.2019.9000229

Anant Kumar Singh, U. Prasanna, Vinay Rathore, K. Rajashekara, L. Ben-Brahim, A. Gastli

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引用次数: 3

Abstract

This paper proposes a bidirectional three phase single stage ac-dc converter for applications like Electric Vehicle (EV) chargers. AC side of the proposed converter consists of current fed half bridge converter for each of the three phases and the DC side has three phase full bridge converter. The primary and secondary side of the converter are connected through star connection of high frequency transformer. The proposed converter achieves zero current switching (ZCS) of primary side switches and zero voltage switching (ZVS) for secondary side devices, while feeding power from grid to the dc side. The converter has soft switching on the primary side switches when transferring power from the dc side to the grid. The paper also presents a novel modulation and control scheme for the bidirectional power flow. The converter is evaluated using PSIM simulation tool for its operation in all the four quadrants of the PQ plot. The design of the converter, control strategy and the results are presented for a 10KVA converter for EV charger.

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电动汽车充电用软开关单级隔离三相双向PFC变换器

本文提出了一种用于电动汽车(EV)充电器等应用的双向三相单级ac-dc变换器。所提出的变换器的交流侧由三相的电流馈电半桥变换器组成，直流侧有三相全桥变换器。变流器的一次侧和二次侧通过高频变压器星形连接。该变换器实现了一次侧开关的零电流开关(ZCS)和二次侧器件的零电压开关(ZVS)，同时从电网向直流侧供电。当从直流侧向电网传输电力时，变流器在一次侧开关上具有软开关。本文还提出了一种新的双向潮流调制与控制方案。使用PSIM仿真工具对转换器在PQ图的所有四个象限中的操作进行评估。介绍了一种10KVA电动汽车充电器用变换器的设计、控制策略和实验结果。

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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2019 North American Power Symposium (NAPS)

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