无线电能传输(wireless power transfer,WPT)系统具有安全、可靠、方便等优点。文章在分析WPT系统锂离子电池内阻及其典型充电方式的基础上,通过对WPT原理和谐振拓扑结构的研究,提出了基于LCC-S补偿式谐振拓扑的WPT系统。在电池等效负...无线电能传输(wireless power transfer,WPT)系统具有安全、可靠、方便等优点。文章在分析WPT系统锂离子电池内阻及其典型充电方式的基础上,通过对WPT原理和谐振拓扑结构的研究,提出了基于LCC-S补偿式谐振拓扑的WPT系统。在电池等效负载变化的情况下,通过合理的参数设计,LCC-S补偿式谐振拓扑结构可以分别实现与负载无关的恒流模式和恒压模式,无需切换拓扑结构。在理论分析的基础上,设计了系统的参数,并通过MATLAB仿真系统搭建仿真模型,验证了研究中的恒流模式和恒压模式。展开更多
Wireless power transfer(WPT)is gaining much attention for battery charging of electric vehicles(EVs).Resonant WPT systems play a crucial role in achieving efficient power transfer from source to load.An overview of tw...Wireless power transfer(WPT)is gaining much attention for battery charging of electric vehicles(EVs).Resonant WPT systems play a crucial role in achieving efficient power transfer from source to load.An overview of two-element resonant compensation techniques and their characteristics under various operating conditions are presented.Also the converter and control strategies used for different topologies are reviewed.The behavior of the performance factors are evaluated against the operating conditions and compared for the different topologies.展开更多
文摘无线电能传输(wireless power transfer,WPT)系统具有安全、可靠、方便等优点。文章在分析WPT系统锂离子电池内阻及其典型充电方式的基础上,通过对WPT原理和谐振拓扑结构的研究,提出了基于LCC-S补偿式谐振拓扑的WPT系统。在电池等效负载变化的情况下,通过合理的参数设计,LCC-S补偿式谐振拓扑结构可以分别实现与负载无关的恒流模式和恒压模式,无需切换拓扑结构。在理论分析的基础上,设计了系统的参数,并通过MATLAB仿真系统搭建仿真模型,验证了研究中的恒流模式和恒压模式。
文摘Wireless power transfer(WPT)is gaining much attention for battery charging of electric vehicles(EVs).Resonant WPT systems play a crucial role in achieving efficient power transfer from source to load.An overview of two-element resonant compensation techniques and their characteristics under various operating conditions are presented.Also the converter and control strategies used for different topologies are reviewed.The behavior of the performance factors are evaluated against the operating conditions and compared for the different topologies.