发射端并机的单管无线充电系统实验平台设计  

Design of Experimental Platform for Single-switch Wireless Charging System with Parallel Transmitters

作　　者：王春芳 张全磊 郭志浩 杨凌云 段汉卿 WANG Chunfang;ZHANG Quanlei;GUO Zhihao;YANG Lingyun;DUAN Hanqing(School of Electrical Engineering,Qingdao University,Qingdao 266071,Shandong,China)

机构地区：[1]青岛大学电气工程学院,山东青岛266071

出　　处：《实验室研究与探索》2022年第9期61-64,222,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(51877113);教育部产学合作协同育人项目(202002109017)。

摘　　要：提出了一种发射端并机的输入电流连续型单管LC谐振电路。该拓扑结构不仅避免了桥臂的直通,而且可以通过切换副边网络实现恒流和恒压输出。原边线圈解耦简化了分析和计算,且该并机结构避免了各逆变器输入电压的不平衡,提高了无线电能传输系统的稳定性。恒流恒压输出模式可通过控制一个继电器实现,无需添加额外的DC-DC变换器或改变系统的开关频率。最后,搭建了1 kW的实验平台验证理论分析的正确性。In order to solve the limitation of output power of single-switch LC resonant circuit and realize the wireless charging technology of constant-current(CC)and constant-voltage(CV)output,this paper presents parallel transmitters single-switch LC resonant circuit with continuous input current to further improve output power and reduce the damage of current oscillation to power supply.This topology prevents shoot-through of power switches,and adopts switchable secondary networks for CC and CV output.The decoupling transmitters simplifies the analysis and calculation.The parallel transmitters structure avoids the unbalanced input voltage of inverters and improves the stability of the wireless power transfer(WPT)system.CC and CV output modes can be achieved by controlling one relay without adding DC-DC converters or changing switching frequency.Finally,a 1 kW experimental prototype is built to verify the theoretical analysis.Experimental platform combines the design of a variety of hardware and software,it can be used to carry out the teaching of power electronics.

关 键 词：单管 恒流恒压 发射端并机 无线电能传输 

分 类 号：TM724[电气工程—电力系统及自动化]