Experimental Verification of Reducing Power Loss under Light Load Condition of a Bi-Directional Isolated DC/DC Converter for a Battery Charger-Discharger of Electric Vehicle
Experimental Verification of Reducing Power Loss under Light Load Condition of a Bi-Directional Isolated DC/DC Converter for a Battery Charger-Discharger of Electric Vehicle
复制标题
电动汽车充放电器双向隔离DC/DC变换器轻载条件下降低功率损耗的实验验证
DOI：
10.1541/ieejjia.17000897
复制
发表时间：
2021
影响因子：
1.7
通讯作者：
M. Yamada
中科院分区：
文献类型：
--
作者：
Ryota Kondo;Yusuke Higaki;M. Yamada
本文提出了一种用于电动汽车电池充放电的双向隔离型DC/DC变换器，以减少轻负载下的功率损耗。所提出的DC/DC变换器由两个全桥逆变器、一个隔离变压器和一个升压电抗器组成，并提供双向传输、降压-升压转换、零电压开关和无功抑制。逆变器整流侧的两个功率半导体被关断以阻断无功电流，这增加了轻负载下的功率损耗。两个全桥逆变器的相移量连续控制，同时实现无缝输电。400 V-3.5 kW实验系统具有稳定的双向升压转换和充放电模式无缝转换，同时抑制无功功率。此外，与传统控制相比，该DC/DC变换器在轻负载（240 W）下可减少67.5 W的功率损耗。
This paper proposes a bi-directional isolated DC/DC converter for the battery charger and discharger of Electric Vehicle to reduce the power loss under light loads. The proposed DC/DC converter consists of two full-bridge inverters, an isolated transformer, and a boost reactor, and provides bi-directional transmission, buck-boost conversion, zero-voltage-switching and reactive power suppression. Two power semiconductors of the inverter in the rectification side are turned off to block a reactive current, which increases the power loss under light loads. The phase shift amount in the two full bridge inverters are controlled continuously and simultaneously seamless power transmission. The 400 V–3.5 kW experimental system exhibits stable bi-directional buck-boost conversion and seamless transition between the charging and discharging modes, while suppressing the reactive power. Moreover, the proposed DC/DC converter reduces power loss by 67.5 W under light loads (240 W), compared with the conventional control.
影响因子：
6.7
作者：
Inoue, Shigenori;Akagi, Hirofumi
通讯作者：
Akagi, Hirofumi
影响因子：
6.7
作者：
Inoue, Shigenori;Akagi, Hirofumi
通讯作者：
Akagi, Hirofumi