对无线电动汽车充电应用中使用的直流/直流降压转换器拓扑结构进行研究和实验比较

Hakan Akca, Ahmet Aktas
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引用次数: 0

摘要

有关电动汽车(EV)应用中的无线电力传输(WPT)技术和外围设备的研究正在不断深入。当从 WPT 系统接收的能量被传输到电动汽车电池时,需要使用直流(dc)/直流转换器电路。直流/直流降压转换器拓扑结构就是其中之一。转换器电路必须高效、轻巧、紧凑,才能在电动汽车中实现较高的续航能力。文献中有异步降压、同步降压和交错同步降压转换器电路拓扑。本研究使用 MATLAB/Simulink 和实验研究分析了这些电路拓扑的效率结果。本研究通过进行电路级效率分析和元件级功率损耗分析,为文献做出了贡献。此外,示波器结果表明,该电路拓扑的电流纹波低于其他电路转换器。尤其是交错同步降压转换器(ISBC)的功率损耗显著降低了 56%。本研究分析了直流/直流降压转换器拓扑的动态行为,并给出了有关其性能的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Examination and experimental comparison of dc/dc buck converter topologies used in wireless electric vehicle charging applications
The studies on Wireless Power Transfer (WPT) technology and peripherals in Electric Vehicle (EV) applications are intensifying. While the energy received from the WPT system is transferred to the EV battery, the direct current (dc)/dc converter circuits are used. The dc/dc buck converter topologies are one of them. The converter circuits must be highly efficient, lightweight, and compact to have a high range in EV vehicles. There are asynchronous buck, synchronous buck, and interleaved synchronous buck converter circuit topologies from the literature. In this study, the efficiency results of these circuit topologies were analyzed using MATLAB/Simulink and experimental studies. This study contributes to the literature by conducting circuit-level efficiency analysis and component-level power loss analysis. It has been observed that the interleaved synchronous buck converter circuit operates at 99% efficiency at 1066 W. In addition, it has been shared with the oscilloscope results that the current ripples of this circuit topology are lower than other circuit converters. Specifically, there has been a significant reduction of 56% in power losses, particularly in the interleaved synchronous buck converter (ISBC). This study analyzes the dynamic behavior of the dc/dc buck converter topologies, and results about their performance are given.
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