非线性谐振无线电能传输系统频率分裂特性
Frequency Splitting Characteristics of Nonlinear Resonant WPT System
刘晓阳 1王嘉鹏 1田子建 1樊京2
作者信息
- 1. 中国矿业大学(北京)机电与信息工程学院,北京 100083
- 2. 南阳理工学院 电子与电气工程学院,河南 南阳 473000
- 折叠
摘要
针对由于频率分裂现象导致无线电能传输系统传输效率降低的问题,采用非线性谐振拓扑替代传统线性谐振拓扑抑制频率分裂进行了研究.首先通过A参数矩阵法得出了求解高阶系统传输效率公式理论方法,并推导了非线性传输系统的效率公式;分析了非线性谐振传输系统抑制频率分裂现象的原理,在系统产生频率分裂现象的情况下将非线性电感并入次级线圈,可以改善系统的传输特性.并通过仿真测试频率分裂现象对于非线性传输系统的影响.结果表明:在相同频率条件下,非线性传输系统可以推迟传输系统临界耦合状态的出现,且对抑制频率分裂现象具有明显的效果.
Abstract
In order to suppress the frequency splitting phenomenon of the wireless power transmission system,a Non-linear wireless power transmission system was used to solve the described issue.This method incorporated a non-linear inductor into the secondary coil and used the saturation characteristics of the nonlinear inductor to affect the system transmission efficiency.The equation for the transmission efficiency of nonlinear systems was derived,and the principle of the method was described.The method was simulated and experimented,and the correctness of the simu-lation results was verified by experiments,the results show that the nonlinear transmission system has an obvious effect in limiting the frequency splitting phenomenon.
关键词
非线性/参数/频率分裂/谐振拓扑/过耦合Key words
Nonlinear/Parameter/Frequency splitting/Resonant topology/Over coupling引用本文复制引用
出版年
2024
NETL
NSTL
万方数据