全方向无线电能传输电磁耦合系统仿真分析

近年来,全方向无线电能传输技术由于具有位置鲁棒性好、安全可靠性高和环境亲和力强等独特优势,受到国内外研究机构和科研院所的广泛关注.高性能的电磁耦合系统作为全方向无线电能传输系统的关键环节,对实现高效的系统能量传输有着至关重要的作用.首先,运用电路理论建立了全方向线圈结构的等效电路模型,得到系统输出电压和输出功率的表达式...

Simulation Analysis of Electromagnetic Coupling System for Omnidirectional Wireless Power Transfer

In recent years, omnidirectional wireless power transfer technology has been widely concerned by domestic and foreign research institutions and research institutes because of its unique advantages such as good location robustness, high safety and reliability, and strong environmental affinity. High performance electromagnetic coupling system is the key link of omnidirectional wireless power transfer system. Firstly, the equivalent circuit model of omnidirectional coil structure is established by using circuit theory, and the expressions of output voltage and output power of the system are obtained. The control scheme of omnidirectional wireless power transfer system is also presented. Secondly, the charging scenario of omni-directional radio energy transmission is analyzed. The disadvantages of the three-orthogonal circular ring transmitting coil structure scheme are analyzed, and the cube transmitting coil structure scheme is proposed. Finally, the mathematical model of two magnetic coupling coil structures are established to obtain the relationship between mutual inductance and the position of receiving coil, charging scene and rotation Angle. The correctness of the theoretical analysis is verified by the simulation experiment, which provides a reference for the design of electromagnetic coupling system for omnidirectional wireless power transfer.