摘要
在远距离无线电能传输系统中,两线圈的耦合系数很低。为了提高系统的输出功率,一般需要提高谐振频率,这就要求发射侧的逆变电路拓扑要适应较高的工作频率。E类放大器的拓扑简单,工作频率达MHz级别,且工作在软开关状态下,适合作为无线电能传输系统的高频激励源。由于实际应用中,各种寄生参数对E类放大器的调试会造成一些影响。本文基于E类放大器的基本工作原理,利用simplorer仿真并联电容大小对E类放大器的作用,为后期实验调试提供一定的指导方向。并且通过Maxwell和simplorer的联合仿真研制了一套无线电能传输系统,能够实现在两线圈距离50cm,功率大于10W的能量传输。并且运行状况良好。
In the long distance wireless energy transfer system, the coupling coefficient of the two coil is very low. In order to improve the output power of the system, it is generally required to increase the resonant frequency, which requires the transmission side of the inverter circuit topology to adapt to the higher operating frequency. The topology of the class E amplifier is simple, and the operating frequency is MHz. So it is suitable for the high frequency excitation source of the wireless energy transfer system. Because of the practical application, all kinds of parasitic parameters have some effect on the adjustment of E class amplifier. Based on the basic working principle of E class amplifier, the Simplorer is used to simulate the effect of parallel capacitor in order to provide some guidance for the latter experiment. And through the combination of Simplorer and Maxwell, a set of wireless energy transfer system is developed, which can be realized in the two coil distance 50cm,and the output power is greater than 10W. And it runs in good condition.
作者
曾智强
郑心城
陈为
ZENG Zhi-qiang ZHENG Xin-cheng CHEN Wei(College of Electrical Engineering and Automation of Fuzhou University ,Fuzhou 350116, China)
出处
《电气开关》
2017年第1期93-97,100,共6页
Electric Switchgear
