四线圈磁耦合谐振式无线电能传输系统效率研究
|
摘要
针对目前常用的磁耦合谐振式无线电能传输系统中,耦合距离变化时,最佳谐振点随之改变导致传输效率迅速下降的问题,提出一种四线圈的无线电能传输结构,并将"L型"阻抗匹配电路结构分别引入发射和接收端,推导了四线圈传输模型结构下传输效率η与正向传输系数S_(21)的绝对值的平方成正比之间的关系,在发射和接收端分别引入"L型"阻抗匹配电路结构来增大系统的正向传输系数。搭建了四线圈磁耦合谐振式无线电能传输系统模型,测量并分析了不同线圈间的距离对系统传输效率和负载电压的影响,验证了理论分析与实验数据的一致性,通过四线圈磁耦合谐振式无线电能系统设计,有效地提高了无线电能传输效率。
In order to solve the problem that when the couping distance changes in the currently used magnetic coupling resonant wireless power transmission system, the change of the optimal resonancee point cuases a significant reduce in system efficiency, an L-type impedance matching circuit implemented at both the transmitting and receiving sides of a 4-coil wireless power transmission system is proposed. A 4-coil magnetic coupling resonant wireless power transmission system model was built. The influence of the distance between different coils on the transmission efficiency and load voltage was measured and analyzed, and the consistency between the theoretical analysis and experimental data was verified. Through the design of the 4-coil magnetic coupling resonant wireless power system, the efficiency of wireless power transmission is effectively improved.
In order to solve the problem that when the couping distance changes in the currently used magnetic coupling resonant wireless power transmission system, the change of the optimal resonancee point cuases a significant reduce in system efficiency, an L-type impedance matching circuit implemented at both the transmitting and receiving sides of a 4-coil wireless power transmission system is proposed. A 4-coil magnetic coupling resonant wireless power transmission system model was built. The influence of the distance between different coils on the transmission efficiency and load voltage was measured and analyzed, and the consistency between the theoretical analysis and experimental data was verified. Through the design of the 4-coil magnetic coupling resonant wireless power system, the efficiency of wireless power transmission is effectively improved.
引文
[1]杨庆新,陈海燕,徐桂芝,等.无接触电能传输技术的研究进展[J].电工技术学报,2010,25(7):6-13.
[2]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.
[3]吴嘉迅,吴俊勇,张宁,等.基于磁耦合谐振的无线能量传输的实验研究[J].现代电力,2012, 29(1):24-28.
[4] Kurs A,Karalis A,Moffatt R,et al. Wireless power transfer via strongly coupled magnetic resonances[J]. Science,2007,317(6):83-86.
[5]黄辉,黄学良,谭林林.基于磁场谐振耦合的无线电力传输发射及接收装置的研究[J].电工电能新技术,2011,30(1):32-35.
[6]邱利莎,黄守道,李中启.磁耦合谐振式无线输电系统阻抗匹配研究[J].电力电子技术,2015,49(10):86-88.
[7]李富林,樊绍胜,李森涛.无线电能传输最优效率下的阻抗匹配方法研究[J].电力电子技术,2015,49(4):105-108.
[8] Park B C,Lee J H. Adaptive impedance matching of wireless power transmission using multi-loop feed with single operating frequency[J]. IEEE Transactions on Antennas and Propagation,2014,62(5):2851-2856.
[9] Pichorim S F, Abatti P L. Design of circular and solenoid coils for maximum mutual inductance[C]//Proceedings of14th International Symposium on Biotelemetry. 1998.
[10] 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 Electronics, 2011 58(11):4746-4752.
[11]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.
[12]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.
[13]王国东,原璐璐,王允建.磁耦合谐振式无线电能传输系统的四线圈模型研究[J].电源学报,2015,13(1):101-106.
[14]钟晨明.基于磁耦合谐振无线电能传输组网结构及相关电路的研究[D].南昌:南昌大学,2015.
[2]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.
[3]吴嘉迅,吴俊勇,张宁,等.基于磁耦合谐振的无线能量传输的实验研究[J].现代电力,2012, 29(1):24-28.
[4] Kurs A,Karalis A,Moffatt R,et al. Wireless power transfer via strongly coupled magnetic resonances[J]. Science,2007,317(6):83-86.
[5]黄辉,黄学良,谭林林.基于磁场谐振耦合的无线电力传输发射及接收装置的研究[J].电工电能新技术,2011,30(1):32-35.
[6]邱利莎,黄守道,李中启.磁耦合谐振式无线输电系统阻抗匹配研究[J].电力电子技术,2015,49(10):86-88.
[7]李富林,樊绍胜,李森涛.无线电能传输最优效率下的阻抗匹配方法研究[J].电力电子技术,2015,49(4):105-108.
[8] Park B C,Lee J H. Adaptive impedance matching of wireless power transmission using multi-loop feed with single operating frequency[J]. IEEE Transactions on Antennas and Propagation,2014,62(5):2851-2856.
[9] Pichorim S F, Abatti P L. Design of circular and solenoid coils for maximum mutual inductance[C]//Proceedings of14th International Symposium on Biotelemetry. 1998.
[10] 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 Electronics, 2011 58(11):4746-4752.
[11]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.
[12]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.
[13]王国东,原璐璐,王允建.磁耦合谐振式无线电能传输系统的四线圈模型研究[J].电源学报,2015,13(1):101-106.
[14]钟晨明.基于磁耦合谐振无线电能传输组网结构及相关电路的研究[D].南昌:南昌大学,2015.