点击次数：

所属单位：机电学院

发表刊物：JOURNAL OF POWER ELECTRONICS

关键字：Intermediate coil Magnetically coupled resonant Spatial scales Stable transmission characteristics Wireless power transfer

摘要：In magnetically coupled resonant (MCR) wireless power transfer (WPT) systems, the introduction of additional intermediate coils is an effective means of improving transmission characteristics, including output power and transmission efficiency, when the transmission distance is increased. However, the position of intermediate coils in practice influences system performance significantly. In this research, a three-coil MCR WPT system is adopted as an exemplification for determining how the spatial position of coils affects transmission characteristics. With use of the fundamental harmonic analysis method, an equivalent circuit model of the system is built to reveal the relationship between the output power, the transmission efficiency, and the spatial scales, including the axial, lateral, and angular misalignments of the intermediate and receiving coils. Three cases of transmission characteristics versus different spatial scales are evaluated. Results indicate that the system can achieve relatively stable transmission characteristics with deliberate adjustments in the position of the intermediate and receiving coils. A prototype of the three-coil MCR WPT system is built and analyzed, and the experimental results are consistent with those of the theoretical analysis.

ISSN号：1598-2092

是否译文：否

发表时间：2019-01-01

合写作者：Chen, Lu,陈陆陆,Ye, Weiwei,Zhang, Weipeng

通讯作者：陈旭玲