磁耦合谐振式无线电能传输系统四线圈结构研究

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英文篇名：Research on four-coil structure of magnetically coupled resonant wireless power transmission system 作者：冯柳 ; 赫佳峦 英文作者：FENG Liu;HE Jialuan;School of Mechanical Electronic and Information Engineering,China University of Mining and Technology(Beijing); 关键词：磁耦合谐振式无线电能传输 ; 四线圈结构 ; 耦合系数 ; 频率分裂 ; 传输效率 ; 输出功率 英文关键词：magnetically coupled resonant wireless power transmission;;four-coil structure;;coupling coefficient;;frequency splitting;;transmission efficiency;;output power 中文刊名：MKZD 英文刊名：Industry and Mine Automation 机构：中国矿业大学(北京)机电与信息工程学院; 出版日期：2019-04-29 15:48 出版单位：工矿自动化 年：2019 期：v.45;No.278 基金：国家重点研发计划专项资助项目(2016YFC0801804);; 国家自然科学基金资助项目(51674269) 语种：中文; 页：MKZD201905015 页数：6 CN：05 ISSN：32-1627/TP 分类号：76-81

摘要

针对传统的四线圈磁耦合谐振式无线电能传输系统的四线圈位置相对固定、不得随意改变,从而导致使用局限性的问题,提出了一种新型的四线圈结构:电源线圈、负载线圈分别与集总电容相连接,形成电源谐振回路和负载谐振回路,电源线圈可与发射线圈产生磁谐振,负载线圈可与接收线圈产生磁谐振,同时可以改变4个线圈的相对位置,适当调整4个线圈之间距离。该结构不仅可增加无线电能的传输距离,还可改善频率分裂,使系统输出功率和传输效率最大。仿真与实验分析了4个线圈之间的不同耦合系数组合对系统传输效率和输出功率的影响,结果表明,电源线圈与发射线圈之间的耦合系数越大,系统的传输效率越高,随着耦合系数的增大,传输效率先增大后减小;输出功率和传输效率随着负载线圈和接收线圈之间的传输距离的增加而明显减小,针对不同的传输距离,调整负载线圈和接收线圈之间的距离,可使系统获得同一负载下的最大传输效率及输出功率。
        For the position of four coils of traditional four-coil magnetically coupled resonant wireless power transmission system is relatively fixed and cannot be changed at will,which leads to limitation of its use,a new four-coil structure was proposed:power coil and load coil are connected with the lumped capacitor separately to form power resonant circuit and load resonant circuit,the power coil can produce magnetic resonance with transmitting coil,the load coil can produce magnetic resonance with receiving coil.At the same time,the relative position of the four coils can be changed,the distance between the four coils can be adjusted appropriately,which not only can increase transmission distance of wireless electric energy,but also can improve frequency splitting,so as to maximize output power and transmission efficiency of the system.The effects of different coupling coefficients between the four coils on transmission efficiency and output power of the system were analyzed by simulation and experiment.The results show that the larger the coupling coefficient between the power coil and the transmitting coil is,the higher the transmission efficiency of the system will be,with the increase of the coupling coefficient,the transmission efficiency increases first and then decreases.The output power and transmission efficiency decrease obviously with the increase of the transmission distance between the load coil and the receiving coil.For different transmission distances,adjusting the distance between the load coil and the receiving coil enables the system to obtain the maximum transmission efficiency and output power under the same load.

引文

[1]田子建,林越,王文清,等.MIT无线输电系统电磁辐射特性研究[J].工矿自动化,2015,43(4):59-64.TIAN Zijian,LIN Yue,WANG Wenqing,et al.Research of electromagnetic radiation characteristics of MIT wireless power transmission system[J].Industry and Mine Automation,2015,43(4):59-64.
    [2]陈阳琦,陈丽华,罗博,等.一种电场耦合式无线电能传输系统无源谐振元件电压优化方法[J].电工技术学报,2018,33(10):2237-2244.CHEN Yangqi,CHEN Lihua,LUO Bo,et al.Voltage optimization method of passive resonant elements in electric field coupled power transmission system[J].Transactions of China Electrotechnical Society,2018,33(10):2237-2244.
    [3]赵争鸣,张艺明,陈凯楠.磁耦合谐振式无线电能传输技术新进展[J].中国电机工程学报,2013,33(3):1-13.ZHAO Zhengming,ZHANG Yiming,CHEN Kainan.New progress of magnetically-coupled resonant wireless power transfer technology[J].Proceedings of the CSEE,2013,33(3):1-13.
    [4]JOANNOPOULOS J D,KARALIS A,SOLJACIC M.Wireless non-radiative energy transfer:7741734[P].2010-06-22.
    [5]KARALIS A,JOANNOPOULOS J D,SOLJACIC M.Efficient wireless non-radiative mid-range energy transfer[J].Annals of Physics,2008,323(1):33-46.
    [6]万如.四线圈电磁谐振式无线能量传输系统的研究与设计[D].广州:华南理工大学,2015:24-30.
    [7]罗恒.基于松耦合谐振式磁共振四线圈系统无线能量传输的研究[D].深圳:深圳大学,2016:36-45.
    [8]陈新,张桂香.电磁感应无线充电的联合仿真研究[J].电子测量与仪器学报,2014,28(4):434-438.CHEN Xin,ZHANG Guixiang.Co-simulation research based on electromagnetic induction of wireless power transfer[J].Journal of Electronic Measurement and Instrumentation,2014,28(4):434-438.
    [9]朱忠尼,林洁,宋庆国,等.磁耦合谐振式无线电能传输技术发展和应用研究[J].空军预警学院学报,2014,28(1):37-43.ZHU Zhongni,LIN Jie,SONG Qingguo,et al.Development of WPT technology with magnetic coupling resonance and its application[J].Journal of Air Force Early Warning Academy,2014,28(1):37-43.
    [10]KIANI M,GHOVANLOO M.The circuit theory behind coupled-mode magnetic resonance-based wireless power transmission[J].IEEE Transactions on Circuits and Systems I:Regular Papers,2012,59(9):2065-2074.
    [11]NIU W Q,GU W,CHU J X,et al.Coupled-mode analysis of frequency splitting phenomena in CPT systems[J].Electronics Letters,2012,48(12):723.
    [12]FOTOPOULOU K,FLYNN B W.Wireless power transfer in loosely coupled links:coil misalignment model[J].IEEE Transactions on Magnetics,2011,47(2):416-430.
    [13]张献,杨庆新,陈海燕,等.电磁耦合谐振式无线电能传输系统的建模、设计与实验验证[J].中国电机工程学报,2012,32(21):153-158.ZHANG Xian,YANG Qingxin,CHEN Haiyan,et al.Modeling and design and experimental verification of contactless power transmission systems via electromagnetic resonant coupling[J].Proceedings of the CSEE,2012,32(21):153-158.
    [14]黄学良,曹伟杰,周亚龙,等.磁耦合谐振系统中的两种模型对比探究[J].电工技术学报,2013,28(增刊2):13-17.HUANG Xueliang,CAO Weijie,ZHOU Yalong,et al.Comparative study on the two kinds of models in the technology of magnetic coupling resonance system[J].Transactions of China Electrotechnical Society,2013,28(S2):13-17.
    [15]WANG Q,LI H.Research on the wireless power transmission system based on coupled magnetic resonances[C]//International Conference on Electronics,Communications and Control,2011:2255-2258.