一种非接触式电能传输系统设计  

Design of a contactless power transmission system

作　　者：汪友明[1] 苏亮[1] 李举刚[1] 

机构地区：[1]西安邮电大学自动化学院,陕西西安710121

出　　处：《西安邮电大学学报》2017年第4期62-67,共6页Journal of Xi’an University of Posts and Telecommunications

基　　金：国家自然科学基金资助项目(51205309);西安邮电大学创新基金资助项目(CXL2015-24)

摘　　要：提出一种基于电磁感应的非接触式电能传输系统。通过建立松耦合式变压器理论模型,推导电能传输效率的表达式,并选取最佳耦合系数,确定磁芯及线圈结构。采用单片机控制场效应管驱动发射线圈,设计发射电路、功放电路、电流电压检测电路、整流以及滤波电路等外围电路,并给出系统软件设计方法。将该系统的发射和接收线圈保持LC谐振状态,提升其无线电能传输效率。测试结果表明,该系统最大传输效率可达到65%。A contactless power transmission system based on electromagnetic induction is proposed. By establishing the theoretical model of loosely coupled tran s fo rm er, the expression of transmission efficiency is derived, and the optimum coupling coefficient is selected to determine the magnetic core and coil structure. The field effect tube controlled by single chip microcomputer is used to drive the transm it ting coil. The peripheral circuits including transmitting circui t, the power amplifier circuit, the current and voltage detecting circuit, the rectifier and the filter circuit are designed, and the method fo r designing system software is also presented. The transmit ting and receiving coils of the system can therefore be kept in the state of LC resonance, which can effectively improve the efficiency of wireless power transmission. Test results show that the maximum transmission efficiency of the system can reach 65% .

关 键 词：电磁感应 单片机 无线电能传输 传输效率 

分 类 号：TM724.1[电气工程—电力系统及自动化]