摘要
目前单管逆变无线电能传输电路由于结构的特殊性无法进行直接并联实现千瓦级别输出。针对此问题,在不需要特殊磁耦合器的情况下,提出了一种用于单管逆变器的双重并联结构。所提恒压补偿网络通过引入辅助谐振LC使得逆变器可正常运行,实现单线圈并联;应用增流LC网络,将电压源并联转换为电流源并联,增加电流输入能力的同时,使输出电压具有更高的自由度。为验证所提拓扑的可行性且模拟为电动汽车144 V电池包充电,设计了一台输出164 V/1.3 kW的实验样机,最大效率可达90.2%。
Aimed at the problem that the existing single-switch inverter wireless power transfer circuit cannot be directly paralleled to realize the kW level output due to its structural particularity,a double parallel structure for single-switch inverter is proposed without special magnetic couplers.The proposed constant-voltage compensation network enables the inverter to operate normally by introducing an auxiliary resonant LC,so that the single coil is paralleled.By applying the current-increasing LC network,the voltage source is converted into a current source in parallel,thus increasing the current input capability and giving the output voltage a higher degree-of-freedom.To verify the feasibility of the proposed topology and simulate the charging process of a 144 V battery pack for electric vehicle,a 164 V/1.3 kW experimental prototype was designed,and its maximum efficiency can reach 90.2%.
作者
郭志浩
王春芳
杨凌云
丁祥昱
卢心雨
GUO Zhihao;WANG Chunfang;YANG Lingyun;DING Xiangyu;LU Xinyu(College of Electrical Engineering,Qingdao University,Qingdao 266071,China)
出处
《电源学报》
CSCD
北大核心
2022年第6期42-48,共7页
Journal of Power Supply
基金
国家自然科学基金资助项目(51877113)。
关键词
恒压输出
单管电路
并联
均流
constant-voltage output
single-switch circuit
parallel
current sharing
