基于频率切换实现电池恒流和恒压充电的LCC-S补偿WPT系统研究  

Research on LCC-S Compensated WPT System Based on Frequency Switching to Realize CC and CV Charging for Battery

作　　者：邹静 徐耘英 彭娟娟[1] 刘翼 陈耀军[2] ZOU Jing;XU Yunying;PENG Juanjuan;LIU Yi;CHEN Yaojun(Electrical Automation Department,Wuhan Electric Power Technical College,Wuhan 430070,China;Schoolof Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉电力职业技术学院电气自动化系,武汉430070 [2]武汉大学电气与自动化学院,武汉430072

出　　处：《电源学报》2023年第3期117-124,共8页Journal of Power Supply

摘　　要：无线电能传输WPT(wireless power transfer)系统具有安全、方便、美观等性能优势,已逐步渗入到人们的日常生活中。在电池充电应用中,通常期望WPT系统能够在零相角ZPA(zero phase angle)条件下实现负载无关的恒流和恒压充电功能。提出了一种基于频率切换的LCC-S补偿WPT系统及其参数设计方法,可使系统在2个不同的ZPA频率点分别实现负载无关的恒流和恒压充电输出,无需改变电路拓扑结构。设计的LCC-S补偿WPT系统接收侧仅有一个补偿电容,确保了WPT系统接收侧紧凑性。最后,搭建了一台充电电流和电压分别为3 A和50 V的实验样机,验证了本研究中WPT系统的合理性与实用性。The wireless power transfer(WPT)system has perfbnnance advantages such as safety,convenience,and beautiful outlook,and it has gradually penetrated into people's daily life.In the applications of battery charging,it is generally expected that WPT systems can achieve load-independent constant current(CC)and constant voltage(CV)charging functions under zero phase angle(ZPA)conditions.An LCC-S compensated WPT system based on frequency switching and its parameter design method are put forward,which can enable the system to achieve load-independent CC and CV charging output at two different ZPA frequency points without changing the circuit topology.The designed LCC-S compensated WPT system has only one compensation capacitor on the receiver-side,ensuring the compactness therein.Finally,an experimental prototype with charging current 3 A and voltage 50 V was built,and results verified the rationality and practicability of the proposed WPT system.

关 键 词：无线电能传输 恒流 恒压 零相角 LCC-S 

分 类 号：TM724[电气工程—电力系统及自动化]