Analysis of transmission characteristics of multi-loads wireless power transfer system with cross-coupling
HUANG Dongxiao1,2
1. Quanzhou Institute of Equipment Manufacturing, Haixi Institutes, Chinese Academy of Sciences, Quanzhou, Fujian 362000; 2. Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350000
Abstract In a magnetic coupled resonant wireless power transmission (MCR-WPT) system with multiple receiving coils, the cross-coupling between receiving coils may affect performance of the system. A theoretical calculation and numerical simulation method is used for the analysis. The equivalent circuit model is used to derive the relationship between transfer power, efficiency and load impedance, mutual inductance. The mutual inductances between coils at typical locations are obtained by the Maxwell simulation. The theoretical analysis in the cases of different offset distances and load resistances is realized by numerical simulation method in view of cross-coupling. Finally, an experimental prototype is built to verify the theoretical analysis and simulation results. The results show that the adverse effects of cross coupling can be suppressed and the transmission performance of the system can be improved by reasonable location layout and load impedance parameter design in multi-load system.
HUANG Dongxiao. Analysis of transmission characteristics of multi-loads wireless power transfer system with cross-coupling[J]. Electrical Engineering, 2023, 24(4): 9-14.
[1] 薛明, 杨庆新, 章鹏程, 等. 无线电能传输技术应用研究现状与关键问题[J]. 电工技术学报, 2021, 36(8): 1547-1568. [2] 王汉丰, 唐春森, 左志平, 等. 电动车无线供电系统多负载模式分析及导轨结构优化设计[J]. 电气技术, 2019, 20(8): 6-10, 44. [3] 蔡光柱, 杨振, 郑鹏超. 大跨越输电线路巡检机器人系统的设计[J]. 电气技术, 2022, 23(4): 76-81. [4] 宋丹丹. 分布式传感网中一种基于最大充电效益的WCV调度优化策略[D]. 南京: 南京邮电大学, 2020. [5] 罗成鑫, 丘东元, 张波, 等. 多负载无线电能传输系统[J]. 电工技术学报, 2020, 35(12): 2499-2516. [6] 赵国强, 安慧林, 李艳红, 等. 多负载谐振式无线能量传输系统特性分析[J]. 电力电子技术, 2015, 49(10): 92-94. [7] 孙淑彬, 张波, 李建国, 等. 多负载磁耦合无线电能传输系统的拓扑发展和分析[J]. 电工技术学报, 2022, 37(8): 1885-1903. [8] 卢伟国, 陈伟铭, 李慧荣. 多负载多线圈无线电能传输系统各路输出的恒压特性设计[J]. 电工技术学报, 2019, 34(6): 1137-1147. [9] LAHA A, KALATHY A, JAIN P.Efficiency optimi- zation of wireless power transfer systems having multiple receivers with cross-coupling by resonant frequency adjustment of receivers[C]//2021 IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, BC, Canada, 2021: 5735-5742. [10] 罗斌, 刘婉, 钟晨明, 等. 磁耦合谐振三线圈无线电能传输的交叉耦合效应及电抗补偿[J]. 电力系统自动化, 2015, 39(8): 105-112. [11] LEE S B, KIM M, JANG I G.Determination of the optimal resonant condition for multi-receiver wireless power transfer systems considering the transfer efficiency and different rated powers with altered coupling effects[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021, 9(2): 2384-2393. [12] XU Yu, CHEN Qili, LI Bo, et al.Position optimization of maintaining stable transfer for dynamic dual-RX WPT system[J]. IEEE Microwave and Wireless Com- ponents Letters, 2022, 32(9): 1123-1126. [13] XIE Xinhao, XIE Congzhen, WANG Jigang, et al.Constant current output control based on cross- coupling compensation in multireceiver WPT system using active rectifier[J]. IEEE Transactions on Trans- portation Electrification, 2023, 9(1): 1960-1972. [14] LIM J, LEE B, GHOVANLOO M.A multi-phase resonance-based boosting rectifier with dual outputs for wireless power transmission[J]. IEEE Transactions on Power Electronics, 2020, 35(3): 2680-2689. [15] SONG Jibin, LIU Ming, MA Chengbin.Analysis and design of a high-efficiency 6.78-MHz wireless power transfer system with scalable number of receivers[J]. IEEE Transactions on Industrial Electronics, 2020, 67(10): 8281-8291. [16] QI Chen, HAUNG Sheng, CHEN Xiyou, et al.Multi- frequency modulation to achieve an individual and continuous power distribution for simultaneous MR- WPT system with an inverter[J]. IEEE Transactions on Power Electronics, 2021, 36(11): 12440-12455. [17] LEE K, CHAE S H.Comparative analysis of frequency- selective wireless power transfer for multiple-RX systems[J]. IEEE Transactions on Power Electronics, 2020, 35(5): 5122-5131. [18] CHENG Chenwen, LI Weiguo, ZHOU Zhe, et al.A load-independent wireless power transfer system with multiple constant voltage outputs[J]. IEEE Transa- ctions on Power Electronics, 2020, 35(4): 3328-3331. [19] 陈晓平, 刘岩. 多负载磁耦合谐振无线电能传输系统功效分析与优化[J]. 电气技术, 2022, 23(4): 37-41. [20] YE Weiwei, LIU Fuxin, MEI Tianming, et al.Trans- mission characteristics analysis of a double-cheeked MCR WPT system with two receivers under varying spatial scales[C]//2018 IEEE Applied Power Elec- tronics Conference and Exposition (APEC), San Antonio, TX, USA, 2018: 1086-1091.
2023, Vol. 24 
