单级实现的恒流恒压无线充电补偿网络研究  

Research on Single-stage WPT Compensation Network with Constant Current and Voltage Outputs

作　　者：陈金 王春芳 王京雨 卢哲 卢心雨 CHEN Jin;WANG Chunfang;WANG Jingyu;LU Zhe;LU Xinyu(School of Electrical Engineering,Qingdao University,Qingdao,Shandong 266071,China)

机构地区：[1]青岛大学电气工程学院,山东青岛266071

出　　处：《广东电力》2023年第2期22-32,共11页Guangdong Electric Power

基　　金：国家自然科学基金项目(51877113)。

摘　　要：基于无桥升压功率因数校正(power factor correction,PFC)的单级无线电能传输(wireless power transfer,WPT)电源与传统多级WPT电源相比具有体积小、成本低、效率高及可靠性高的优点,但其存在着发射端直流环节电压升高,难以通过补偿网络实现恒流与恒压等问题。为此,提出了一种不对称调制方式及该调制方式对应的补偿网络,解决该单级WPT变换器中发射端直流环节的电压升高问题,并且使得该单级式WPT电源通过补偿网络切换实现了与负载无关的恒流恒压输出。仿真和实验验证了提出的不对称调制方法及其补偿网络的正确性,为无桥升压PFC的单级WPT电源走向应用打下了基础。Single-stage wireless power transfer(WPT)power supply with bridgeless boost power factor correction(PFC)has the advantages of small volume,low cost,high efficiency and high reliability compared with traditional multi-stage WPT power supply.However,there are some problems such as the rising voltage of DC link in the transmitting circuit and the difficulty of realizing constant current and constant voltage through compensation network.Therefore,this paper proposes an asymmetric modulation method and corresponding compensation network to solve the problem of rising voltage and realize the load-independent constant current and constant voltage output by hybrid compensation network in the single-stage WPT converter.The simulation and experiment both verify the correctness of the proposed asymmetric modulation method and corresponding compensation network,which lays the foundation for the application of single-stage WPT converter with bridgeless boost PFC.

关 键 词：无线电能传输 单级式 不对称调制方式 补偿网络 功率因数校正 与负载无关的输出 

分 类 号：TM13[电气工程—电工理论与新技术] TM724