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面向6.78MHz无线电能传输系统的抗偏移恒功率阻抗匹配网络设计
Impedance Matching Network Design for 6.78-MHz Wireless Power Transfer System With Constant Power Characteristics Against Misalignment
| 作者 | Euihoon Chung · Jung-Ik Ha |
| 期刊 | IEEE Transactions on Power Electronics |
| 出版日期 | 2024年1月 |
| 技术分类 | 拓扑与电路 |
| 技术标签 | DC-DC变换器 充电桩 |
| 相关度评分 | ★★ 2.0 / 5.0 |
| 关键词 | 无线电能传输 6.78-MHz 阻抗匹配 恒功率 偏移 E类逆变器 感应电能传输 |
语言:
中文摘要
本文研究了6.78MHz高频无线电能传输（WPT）系统，重点解决了在负载偏移情况下保持恒定功率输出的难题。通过设计新型阻抗匹配网络，优化了单开关逆变器（如E类逆变器）在兆赫兹频率下的传输效率与稳定性，为高频无线充电技术提供了理论支撑。
English Abstract
Wireless power transfer (WPT) technology has become increasingly popular due to its ability to transmit energy without mechanical contact, making it suitable for various industrial fields. This article deals with an inductive power transfer system, which is driven with a single-switch inverter such as Class E in several megahertz or higher frequencies. One of main issues with such systems is that ...
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SunView 深度解读
该技术主要涉及高频无线电能传输，与阳光电源现有的电动汽车充电桩业务（主要为有线充电）存在技术差异，但其高频功率变换与阻抗匹配设计理念可为未来无线充电桩产品的预研提供参考。对于阳光电源而言，目前重点在于大功率直流快充及液冷超充技术，该文献中的高频拓扑优化思路可作为提升充电模块功率密度及效率的储备技术，但在当前产品线中应用优先级较低。