4.4 Article

Superconducting Wireless Power Transfer Beyond 5 kW at High Power Density for Industrial Applications and Fast Battery Charging

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2021.3056195

关键词

AC loss; eddy current loss; high power; high-temperature superconducting (HTS) coil optimization; hysteresis loss; wireless power transfer (WPT)

向作者/读者索取更多资源

This article presents a wireless power transfer system based on high-temperature superconducting coils, which exceeds the power density of most conventional systems and achieves a dc-to-dc efficiency above 97% at 6 kW output power. The analytical and numerical simulations of the ac loss in the HTS coils, considering hysteresis and eddy current contributions, are discussed, and the results are validated by experimental measurements. Experimental results of the full system performance at different frequencies and load conditions are also presented.
State-of-the-art wireless power transfer (WPT) systems, based on conventional copper coils, are known to exhibit efficiencies well above 90% when operated in the resonantly coupled mid-range regime. Besides full system efficiency, the area- and weight-related power densities of the transmission coils are key figures of merit for high power applications. This article reports on a fully functional WPT system, consisting of single pancake high-temperature superconducting (HTS) coils on the transmitter and the receiver side, which exceeds the power density of most conventional systems. Despite a compact coil size, a dc-to-dc efficiency above 97% is achieved at 6 kW output power. Next to the fundamental coil design, analytical and numerical simulations of the ac loss in the HTS coils are shown, taking into account both hysteresis and eddy current contributions. The results are validated by experimental ac loss measurements of single coils, obtained by a standard lock-in technique up to frequencies of 4 kHz. Finally, experimental results of the full system performance at different frequencies and load conditions are presented.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.4
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据