论文标题
电动汽车的Ultra Buck DC/DC转换器
Ultra Buck DC/DC Converter for Electric Vehicles
论文作者
论文摘要
电动汽车电动转换的一个关键挑战是有效地使用了DC-DC雄鹿转换器，这些转换器需要为400/800-V电池提供12V供应。本文介绍了有关DC-DC降压转换器发展的文献综述。此外，选择了一种新型的四相交织的升压拓扑来进行模拟和硬件实验。基于四相交织结构，提出了扩展的相位拓扑结构，该拓扑的电压转换比更高。控制技术也适用于此。提供理论分析和仿真结果以验证改进的转换器。实施了400V到12V和150W输出功率硬件原型以验证其性能
A critical challenge in power conversion in electric vehicles is the efficient use of DC-DC buck converters that need to provide 12-V supply for load systems from 400/800-V batteries. This paper presents a literature review on the development of DC-DC buck converters. Moreover, one novel four-phase interleaved step-down topology is selected for simulation and hardware experiments. Based on the four-phase interleaved structure, an extended-phase topology is proposed, which has a higher voltage conversion ratio. Control techniques are also applied to it. Theoretical analyses and simulation results are provided to verify the improved converter. A 400V-to-12V and 150W output power hardware prototype is implemented to verify its performance
