电磁线圈
无线电源传输
递归(计算机科学)
计算机科学
电阻抗
联轴节(管道)
电子工程
谐振器耦合系数
继电器
功率(物理)
拓扑(电路)
电气工程
算法
物理
工程类
机械工程
谐振器
量子力学
作者
Yeran Liu,Junwen Chen,Yong Li,Zhengyou He
出处
期刊:IEEE Transactions on Industrial Electronics
[Institute of Electrical and Electronics Engineers]
日期:2024-02-01
卷期号:71 (2): 1456-1467
被引量:1
标识
DOI:10.1109/tie.2023.3257383
摘要
The cross-coupling among coils makes it complex to analyze and understand the circuit characters of multiple-relay wireless power transfer (MR-WPT) systems. In order to describe and explain the interaction among cross-coupled coils, this paper proposes a novel method named the transfer coefficient model (TCM), which is derived by the LDU factorization of the system's impedance matrix. This model can describe the interaction among cross-coupled coil loops and the composition of each coil current, with clear physical meanings and recursion forms for programming. As a result, the input and output characters of MR-WPT systems can be obtained and explained explicitly. This paper presents the comprehensive and recursion form of TCM for an arbitrary number of coils, followed by the analysis of MR-WPT systems under various operation modes. A five-coil prototype is built to demonstrate the system characters obtained from the TCM. The experimental results coincide with the theoretical analysis, indicating that the TCM is an effective approach for analyzing MR-WPT systems.
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