Research on power distribution in multiple-input multiple-output magnetic coupling resonance wireless power transfer system

被引：4
|
作者：
Gao, Tian [1 ]
Wang, Xin [1 ]
Jiang, Linrui [1 ]
Ho, Jing [1 ]
Yang, Yan [1 ]
机构：
[1] Northwestern Polytech Univ, Xian, Peoples R China
来源：
ELECTRICAL ENGINEERING | 2021年 / 103卷 / 06期
关键词：
Wireless power transfer; Multiple-input multiple-output (MIMO); Power distribution; General circuit model;
D O I：
10.1007/s00202-021-01302-9
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Aimed at different demands of power of multiple receiver loads in multiple-input multiple-output wireless power transfer (MIMO-WPT) system, in the paper, a method of calculating the excitation source at the transmitter by general circuit model is put forward to realize the power allocation of the receiver loads. First, the magnetic coupling resonance (MCR) MIMO-WPT system is made to be equivalent to a linear circuit model, and the general circuit model of MIMO-WPT system is established, which describes output transfer characteristics, transmission efficiency and output power of the MIMO-WPT system with parametric state matrix. Then, based on the power demand of each receiver load, the vector expression of the excitation source at the transmitter of MIMO-WPT system is derived by the general circuit model. At last, the simulation experiment of WPT system with 3 transmitting and 2 receiving coils is designed to verify the accuracy of the general circuit model estimation and the feasibility of the power distribution of the receiver load. Meanwhile, the application of the general model provides a feasible solution to solve different power demands of multiple receiving loads in the MIMO-MCRWPT system.
引用
收藏
页码：3217 / 3224
页数：8
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