【作者】 李中启； 黄守道； 袁小芳；

【Author】 Zhongqi Li;Shoudao Huang;YUAN Xiaofang;College of electrical and information engineering Hunan University;

【机构】 湖南大学电气与信息工程学院；

【摘要】 针对电磁耦合谐振式无线电能传输系统的发射线圈与接收线圈非同轴放置时系统的传输效率过低的问题。运用耦合模理论,推导出了系统的效率表达式。并以此为基础,分析了发射线圈与接收线圈非同轴放置时,系统传输效率的变化规律。为解决发射线圈与接收线圈之间非同轴放置时系统效率过低的问题,本文提出了一种基于混沌优化算法的参数动态调节方法,该方法能使系统几个关键参数实现最优匹配,有效提高系统的传输效率。最后,研制了一套磁耦合谐振式无线电能传输系统装置,仿真和实验结果验证了理论分析的正确性。更多还原

【Abstract】 Transmission efficiency will be reduced when transmission and receive coils are aligned non-coaxially in the wireless power transfer system via coupled magnetic resonances. The expression for efficiency of the system is derived by using coupled-model theory(CMT), the variation of transmission efficiency is analyzed based on the expression for efficiency of the system. In this paper, the method of adjusting the parameters based on chaos optimization algorithm is proposed, the efficiency can be improved when key parameters of system are matched using that method. A wireless power transmission system via magnetic resonance coupling is designed and created. Simulation and experimental results have verified the validity of the theory.更多还原