摘要
针对传统无线电能传输系统中发射机构和接收机构相对位置发生偏移时,传输功率和效率急剧下降的问题,提出了一种基于耦合谐振及新型空间全向耦合机构的无线电能传输系统。首先通过有限元仿真分析发射机构的磁场分布特性,设计了适应其磁场分布的接收机构;然后基于串串谐振补偿结构建立系统数学模型,分析系统传输特性;在此基础上提出了最优输出方式选择方法和传输特性优化方法。最后,通过试验验证了所提系统多自由度传输能量的可行性和有效性。试验结果表明,接收机构在多角度情况下的输出功率维持在35 W以上,传输效率稳定在60%~75%。
Aiming at the problem that the transmission power and efficiency drop sharply when the relative positions of the transmitting and receiving bodies in the traditional wireless energy transmission system are offset,a wireless energy transmission system based on coupled resonance and a new type of spatial omnidirectional coupling mechanism is proposed.Firstly,the magnetic field distribution characteristics of the transmitting mechanism are analyzed by finite element simulation,and the receiving mechanism adapted to its magnetic field distribution is designed.The mathematical model of the system is established based on the series-series resonance compensation structure,and the transmission characteristics of the system are analyzed.The optimal output selection method and the transmission characteristics optimization method are put forward on the basis of the system.Finally,the feasibility and validity of the system for multi-degree-of-freedom transmission are verified by experiments.The experimental results show that the output power of the system is maintained at more than 35 W and the transmission efficiency is stable at 60%~75%in the case of multiple angles of the receiving mechanism.
作者
陈威
董振宇
陈冲
李智
CHEN Wei;DONG Zhenyu;CHEN Chong;LI Zhi(Low Voltage Apparatus Technology Research Center of Zhejiang,Wenzhou University,Wenzhou 325605,China;School of Mechanical Engineering,Zhejiang Univesity,Hangzhou 310058,China;Huyu Group Co.,Ltd.,Wenzhou 325603,China;Gacia Electrical Appliance Co.,Ltd.,Wenzhou 325603,China)
出处
《电器与能效管理技术》
2024年第7期19-27,共9页
Electrical & Energy Management Technology
基金
温州市基础性科研项目(G20210020)。
关键词
无线电能传输
耦合谐振
多自由度
最优输出方式选择
wireless power transfer
coupled resonance(WPT)
multiple degrees of freedom
selection of optimum output method
