| 引用本文: | 郭尧,朱春波,宋凯,魏国,逯仁贵,徐石明.平板磁芯磁耦合谐振式无线电能传输技术[J].哈尔滨工业大学学报,2014,46(5):23.DOI:10.11918/j.issn.0367-6234.2014.05.005 |
| GUO Yao,ZHU Chunbo,SONG Kai,WEI Guo,LU Rengui,XU Shiming.Magnetic resonant wireless power transmission technology based on planar core[J].Journal of Harbin Institute of Technology,2014,46(5):23.DOI:10.11918/j.issn.0367-6234.2014.05.005 |
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| 摘要: |
| 为了增加磁耦合谐振式无线电能传输系统中发射／接收线圈的自感量以及二者间的耦合系数,提高系统的传输功率和效率,提出利用高磁导率平板磁芯绕制发射／接收线圈的方案．对传输系统进行耦合电路建模,通过电路微分方程给出传输系统相关参数的数学表达式,设计并优化了系统实验平台,研究了加入平板磁芯后系统耦合系数的变化,工作频率对传输的影响,发射与接收的移位传输以及系统的功率传输特性．实现了距离10 cm以上,功率1.85 kW的无线电能传输,系统整体传输效率达到80％以上．平板磁芯耦合机构体积小,在较大水平移位(25％)情况下实现了稳定高效传输． |
| 关键词: 电气工程 无线电能传输 磁耦合谐振 平板磁芯 大功率 |
| DOI：10.11918/j.issn.0367-6234.2014.05.005 |
| 分类号:TM724 |
| 基金项目:国家自然科学基金资助项目(51277037);国家能源应用技术研究及工程示范资助项目(NY20110703-1). |
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| Magnetic resonant wireless power transmission technology based on planar core |
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GUO Yao1, ZHU Chunbo1, SONG Kai1, WEI Guo1, LU Rengui1, XU Shiming2
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(1. School of Electrical Engineering and Automation, Harbin Institute of Technology, 150001 Harbin, China; 2. State Grid Electric Power Research Institute, NARI Group Company, 211000 Nanjing, China)
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| Abstract: |
| Planar core is added to the magnetic resonant wireless power transmission system to increase the self-inductance and the coupling coefficient between the primary coil and secondary coil, and to enhance the transfer power and efficiency. Based on the equivalent circuit analysis, mathematical expression of system parameters are given by the circuit differential equations. Furthermore, a prototype of wireless power transmission system is built, and experiments including coupling coefficient, operating frequency, misalignment, and power transfer characteristic of the system are conducted. The system realizes 1.85 kW power transmission with 10 cm air gap and 80％ efficiency. By using the planar core, the coupling mechanism can achieve stable and effective transmission in 25％ misalignment, and its volume is smaller. |
| Key words: electrical engineering wireless power transmission magnetic resonant coupling planar core high power. |
