A Three-Coil Constant Output Wireless Power Transfer System Based on Parity-Time Symmetry Theory

被引：1
作者：
Yue, Yuntao [1 ]
Yang, Jiahui [1 ]
Li, Ruofan [2 ]
机构：
[1] Beijing Univ Civil Engn & Architecture, Sch Elect & Informat Engn, Beijing 102616, Peoples R China
[2] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 22期
关键词：
wireless power transfer (WPT); parity-time (PT) symmetry; relay coil; power control;
D O I：
10.3390/app132212188
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In a three-coil wireless power transfer system with relay coils, the transmission efficiency and output power of the system decreases with changes in the adjacent coupling coefficients. Controlling the power of three-coil wireless power transfer systems is also a significant challenge. To solve these issues, a three-coil wireless power transfer system based on parity-time symmetry is proposed in this paper. First, a three-coil parity-time wireless power transfer system was modeled based on a circuit model. Then, the transmission and gain characteristics of the three-coil parity-time wireless power transfer system were analyzed. It was found that when the system is in a parity-time-exact region, it can maintain a constant transmission efficiency and output power, and its output power is independent of the coupling coefficient. In addition, based on the output characteristics of the three-coil parity-time wireless power transfer system, a power control method and a working range detection method were proposed to attain a constant power output. Finally, a three-coil parity-time wireless power transfer system was experimentally tested.
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页数：18
相关论文
共 26 条
[1]   Robust wireless power transfer using a nonlinear parity-time-symmetric circuit [J].
Assawaworrarit, Sid ;
Yu, Xiaofang ;
Fan, Shanhui .
NATURE, 2017, 546 (7658) :387-+
[2]   Transmission range extension strategy of parity-time-symmetry-based wireless power transfer system by a boost converter [J].
Chen, Jintao ;
Xie, Fan ;
Zhang, Bo ;
Chen, Yanfeng ;
Xiao, Wenxun .
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS, 2023, 51 (02) :510-524
[3]   Analysis of four-coil magnetic resonance coupling wireless power transfer system based on LCC-SSS compensation network [J].
Chen, Zechi ;
Sun, Xiangdong ;
Ren, Biying ;
Wang, Zhixuan ;
Liu, Jiang .
ENERGY REPORTS, 2023, 9 :419-427
[4]   A Load-Independent Wireless Power Transfer System With Multiple Constant Voltage Outputs [J].
Cheng, Chenwen ;
Li, Weiguo ;
Zhou, Zhe ;
Deng, Zhanfeng ;
Mi, Chris .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2020, 35 (04) :3328-3331
[5]   Load-Independent Wireless Power Transfer System for Multiple Loads Over a Long Distance [J].
Cheng, Chenwen ;
Lu, Fei ;
Zhou, Zhe ;
Li, Weiguo ;
Zhu, Chong ;
Zhang, Hua ;
Deng, Zhanfeng ;
Chen, Xi ;
Mi, Chunting Chris .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2019, 34 (09) :9279-9288
[6]   A Multi-Load Wireless Power Transfer System With Series-Parallel-Series Compensation [J].
Cheng, Chenwen ;
Zhou, Zhe ;
Li, Weiguo ;
Zhu, Chong ;
Deng, Zhanfeng ;
Mi, Chunting Chris .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2019, 34 (08) :7126-7130
[7]   PT Symmetry-Based AUV Dual Transmission Coil Wireless Power Transfer System Design [J].
Fu, You ;
Shi, Zhuoqun ;
Zhu, Yu ;
Lv, Kai ;
Peng, Zhouhua .
MACHINES, 2023, 11 (02)
[8]  
Hu XF, 2018, IEEE ENER CONV, P1992, DOI 10.1109/ECCE.2018.8557494
[9]   Wireless power transfer via strongly coupled magnetic resonances [J].
Kurs, Andre ;
Karalis, Aristeidis ;
Moffatt, Robert ;
Joannopoulos, J. D. ;
Fisher, Peter ;
Soljacic, Marin .
SCIENCE, 2007, 317 (5834) :83-86
[10]   Modeling and Optimization of Magnetically Coupled Resonant Wireless Power Transfer System With Varying Spatial Scales [J].
Liu, Fuxin ;
Yang, Yong ;
Jiang, Dan ;
Ruan, Xinbo ;
Chen, Xuling .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2017, 32 (04) :3240-3250
123