Analysis and Experimental Validation on Maximum Power and Efficiency in Wireless Power Transfer System via Coupled Magnetic Resonances
Li Yang1, Zhang Yaxi1, Yang Qingxin1, Yan Zhuo2, Zhang Xian1, Xue Ming1, Yang Xiaobo1
1. Tianjin Key Laboratory of Advanced Electrical Engineering and Energy Technology Tianjin Polytechnic University Tianjin 300387 China; 2. China Electrotechnical Society Beijing 100823 China
Abstract：In order to confirm whether the frequency offset will influence the maximum power or efficiency of load in wireless power transfer system via coupled magnetic resonances, resonant frequency of the coil, coupling factor, resistance of power and coil were considered comprehensively to model and analyze the power transfer system by mutual inductance coupling theory. the calculation method to transfer power and its efficiency was proposed and then the result of inconsistency on maximum power and efficiency in case of overcoupling with the frequency offset was given. In the end, experiment device was designed and experimental results were well consistent with the theoretical analysis, which shows the right of the proposed method and its result. Thus provides an useful reference for the further research on frequency tracking and its optimization control in wireless power transfer system.
李阳, 张雅希, 杨庆新, 闫卓, 张献, 薛明, 杨晓博. 磁耦合谐振式无线电能传输系统最大功率效率点分析与实验验证[J]. 电工技术学报, 2016, 31(2): 18-24.
Li Yang, Zhang Yaxi, Yang Qingxin, Yan Zhuo, Zhang Xian, Xue Ming, Yang Xiaobo. Analysis and Experimental Validation on Maximum Power and Efficiency in Wireless Power Transfer System via Coupled Magnetic Resonances. Transactions of China Electrotechnical Society, 2016, 31(2): 18-24.
[1] 李阳. 大功率谐振式无线电能传输方法与实验研究[D]. 天津: 河北工业大学, 2012. [2] 李阳, 杨庆新, 陈海燕, 等. 无线电能传输系统中影响传输功率和效率的因素分析[J]. 电工电能新技术, 2012, 31(3): 31-34, 39. Li Yang, Yang Qingxin, Chen Haiyan, et al. Influence factors analysis on power and efficiency in wireless power transfer system[J]. Advanced Tech- nology of Electrical Engineering and Energy, 2012, 31(3): 31-34, 39. [3] Manolatou C, Khan M J, Fan Shanhui, et al. Coupling of modes analysis of resonant channel add-drop filters[J]. IEEE Journal of Quantum Electronics, 1999, 35(9): 1322-1331. [4] Hirai J J, Kim T W, Kawamura A. Wireless trans- mission of power and information for cableless linear motor drive[J]. IEEE transactions on Power Electro- nics, 2000, 15(1): 21-27. [5] Andre K, Aristeidis K, Robert M, et al. Wireless power transfer via strongly coupled magnetic reso- nances[J]. Science, 2007, 317(5834): 83-86. [6] Li Yang, Yang Qingxin, Chen Haiyan, et al. Basic study on improving power of wireless power transfer via magnetic resonance coupling[C]//Advanced Mate- rials Research, 2012, 459: 445-449. [7] 李阳, 杨庆新, 闫卓, 等. 磁耦合谐振式无线电能传输系统的频率特性[J]. 电机与控制学报, 2012, 16(7): 7-11. Li Yang, Yang Qingxin, Yan Zhuo, et al. Characte- ristic of frequency in wireless power transfer system via magnetic resonance coupling[J]. Electric Machines and Control, 2012, 16(7): 7-11. [8] Kiani M, Uei-Ming J, Ghovanloo M. Design and optimization of a 3-coil inductive link for efficient wireless power transmission[J]. IEEE Transactions on Biomedical Circuits and Systems, 2011, 5(6): 579- 591. [9] 翟渊, 孙跃, 戴欣, 等. 磁共振模式无线电能传输系统建模与分析[J]. 中国电机工程学报, 2012, 32(12): 155-160. Zhai Yuan, Sun Yue, Dai Xin, et al. Modeling and analysis of magnetic resonance wireless power transmission systems[J]. Proceedings of the CSEE, 2012, 32(12): 155-160. [10] Lee S H, Robert D. Development and validation of model for 95% efficiency, 220W wireless power transfer over a 30cm air-gap[J]. IEEE Transactions on Industry Applications, 2011, 47(6): 2495-2504. [11] Karalis A, Joannopoulos J D, Soljacic M. Efficient wireless non-radiative mid-range energy transfer[J]. Annals of Physics, 2008, 323(1): 34-48. [12] Kim J W, Son H C, Kim K H, et al. Efficiency analysis of magnetic resonance wireless power transfer with intermediate resonant coil[J]. IEEE Antennas and Wireless Propagation Letters, 2011, 10(1): 389-392. [13] Lee W S, Son W I, Oh K S, et al. Contactless energy transfer systems using antiparallel resonant loops[J]. IEEE Transactions on Industrial Electronics, 2013, 60(1): 350-359. [14] Imura T, Hori Y. Maximizing air gap and efficiency of magnetic resonant coupling for wireless power transfer using equivalent circuit and neumann formula[J]. IEEE Transactions on Industrial Electro- nics, 2011, 58(10): 4746-4752. [15] Tak Y, Park J, Nam S. Mode-based analysis of resonant characteristics for near-field coupled small antennas[J]. IEEE Antennas and Wireless Pro- pagation Letters, 2009, 8(4): 1238-1241. [16] Kim N Y, Kim K Y, Kim C W. Automated frequency tracking system for efficient mid-range magnetic resonance wireless power transfer[J]. Microwave and Optical Technology Letters, 2012, 54(6): 1423-1426. [17] Jongmin P, Youndo T, Yoongoo K, et al. Investi- gation of adaptive matching methods for near-field wireless power transfer[J]. IEEE Transactions on Antennas and Propagation, 2011, 59(5): 1769- 1773. [18] Sample A P, Meyer D A, Smith J R. Analysis, experimental results, and range adaptation of magne- tically coupled resonators for wireless power transfer[J]. IEEE Transactions on Industrial Electro- nics, 2011, 58(2): 544-554. [19] 李阳, 杨庆新, 闫卓, 等. 无线电能有效传输距离及其影响因素分析[J]. 电工技术学报, 2013, 28(1): 106-112. Li Yang, Yang Qingxin, Yan Zhuo, et al. Analysis on effective range of wireless power transfer and its impact factors[J]. Transactions of China Electro- technical Society, 2013, 28(1): 106-112. [20] 李阳, 杨庆新, 闫卓, 等. 磁耦合谐振式无线电能传输方向性分析与验证[J]. 电工技术学报, 2014, 29(2): 197-203. Li Yang, Yang Qingxin, Yan Zhuo, et al. Analysis and validation on characteristic of orientation in wireless power transfer system via coupled magnetic resonances[J]. Transactions of China Electrotechnical Society, 2014, 29(02): 197-203. [21] 傅文珍, 张波, 丘东元, 等. 自谐振线圈耦合式电能无线传输的最大效率分析与设计[J]. 中国电机工程学报, 2009, 29(18): 21-26. Fu Wenzhen, Zhang Bo, Qiu Dongyuan, et al. Maximum efficiency analysis and design of self- resonance coupling coils for wireless power trans- mission system[J]. Proceedings of the CSEE, 2009, 29(18): 21-26. [22] 强浩, 黄学良, 谭林林, 等. 基于动态调谐实现感应耦合无线电能传输系统的最大功率传输[J]. 中国科学: 技术科学, 2012, 42(7): 830-837. Qiang Hao, Huang Xueliang, Tan Linlin, et al. Achieving maximum power transfer of inductively coupled wireless power transfer system based on dynamic tuning control[J]. Science China: Technical Science, 2012, 42(7): 830-837. [23] 朱春波, 于春来, 毛银花, 等. 磁共振无线能量传输系统损耗分析[J]. 电工技术学报, 2012, 27(4): 13-17. Zhu Chunbo, Yu Chunlai, Mao Yinhua, et al. Analysis of the loss of magnetic resonant wireless power transfer[J]. Transactions of China Electro- technical Society, 2012, 27(4): 13-17. [24] 苏玉刚, 徐健, 谢诗云, 等. 电场耦合型无线电能传输系统调谐技术[J]. 电工技术学报, 2013, 28(11): 189-194. Su Yugang, Xu Jian, Xie Shiyun, et al. A tuning technology of electrical-field coupled wireless power transfer system[J]. Transactions of China Electro- technical Society, 2013, 28(11): 189-194.
2016, Vol. 31 
