摘要
针对传统的电线输电方式存在的很多安全隐患问题,对实现无线电能传输、增加脉冲驱动能力、调节谐振频率以提高传输效率等方面进行了研究,分析了两线圈无线能量传递的影响因素,设计了一种基于磁耦合谐振原理的无线电能传输装置。该装置由发射模块和接收模块组成,发射电路通过晶体振荡产生了精准的控制频率,并通过高压半桥驱动芯片驱动半桥功率电路实现了无线电能发射;接收电路由谐振回路和桥式整流电路组成,将交流电压处理成直流电压,滤波后供给负载。研究结果表明,该装置工作稳定,能实现较远距离的无线电能传输,当负载采用2个1 W的LED灯珠串联时,可在80 cm左右远处将其点亮;同时,在短距离内可以达到较高的传输效率,能够为手电筒、mp3等小功率电子产品充电。
Aiming at the safety problems of traditional transfer electrical energy with wires, a research about transferring electrical energy with wireless, increasing of pulse driving ability and regulating resonant frequency to improve the transmission efficiency was done. And then, the factors which affect the delivery of wireless coil energy were analyzed, and a wireless power transmission device which based on the principle of magnetic coupling resonance was designed. The device consisted of transmitting module and receiving module. The transmission circuit generated accurate controlled frequency and realized the transmission by using the high-pressure half bridge chip to drive half bridge power circuit. The receiving circuit was composed of a resonant circuit and a bridge rectifier, which changed AC voltage to DC voltage. Then the DC voltage could be used by loads. The results indicate that the device is stable, and can transmit the wireless power in a longer distance. When the loads are two 1 watt LED bulbs in series, they can be lighted up in 80 cm. At the same time, the transmission efficiency can be im- proved higher in a short distance, so it is possible to use the device to charge a flashlight, MP3 or other low-power electronic products.
出处
《机电工程》
CAS
2015年第9期1242-1245,共4页
Journal of Mechanical & Electrical Engineering
基金
浙江省自然科学基金资助项目(LY13E090004)
浙江海洋学院科研项目(浙海院研〔2012〕20号)
关键词
无线电能
脉冲驱动
磁耦合谐振
wireless power
pulse driven
magnetic coupling resonance
作者简介
赵佳勇（1993-），男，浙江上虞人，主要从事海洋电子技术及应用方面的研究．E-mail：591895141@qq．com
通信联系人：陈庭勋，男，高级实验师．E-mail：chentx62@qq．com
