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首页> 外文会议>Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition >A novel soft starting strategy of an LLC resonant DC/DC converter for plug-in hybrid electric vehicles
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A novel soft starting strategy of an LLC resonant DC/DC converter for plug-in hybrid electric vehicles

机译：插电式混合动力汽车LLC谐振DC / DC转换器的新型软启动策略

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摘要

Usually a high-efficiency Level 1∼2 battery charger consists of an AC/DC (PFC) part and a DC/DC part, which in this paper is a CoolMOS based 97%-efficiency full-bridge LLC resonant DC/DC converter. Due to the existence of the output capacitance and high input voltage (usually 400VDC), the inrush current of the DC/DC converter in the starting process is inevitable, which requires an effective soft starting strategy. This paper proposed an effective soft starting strategy to gradually charge the output capacitor, decrease the inrush current and, more importantly, avoid the hard switching in the starting process, which is a must to the CoolMOS. The proposed starting strategy has been experimentally validated on a 10kW LLC resonant DC/DC converter.
机译：通常，高效的1级至2级电池充电器由一个AC / DC（PFC）部分和一个DC / DC部分组成，本文中是基于CoolMOS的97％效率的全桥LLC谐振DC / DC转换器。由于存在输出电容和高输入电压（通常为400VDC），因此在启动过程中不可避免出现DC / DC转换器的浪涌电流，这需要有效的软启动策略。本文提出了一种有效的软启动策略，以逐渐对输出电容器充电，减小浪涌电流，更重要的是，避免在启动过程中进行硬切换，这对于CoolMOS来说是必须的。所提出的启动策略已经在10kW LLC谐振DC / DC转换器上进行了实验验证。

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