S-LCC型无线电能传输系统补偿网络分析

为分析S-LCC型拓扑结构的无线电能传输系统中补偿网络参数对于传输特性的影响,首先利用双线圈等效电路模型建立回路电路方程并推导出系统输出功率表达式,其次在不同参数条件下讨论系统的恒流恒压特性,确定以最优输出功率为目标的补偿网络参数之间的相互关系,分析负载电阻与谐振电感以及寄生电阻对于系统输出功率的影响,并搭建双线圈WPT实物系统。研究结果表明：可精准确定以最优输出功率为目标的原副边侧谐振电容关系；系统的输出功率随负载电阻的增加而表现出先增加后减少或者先增加后减少再增加又减少的趋势；最佳负载电阻随着谐振电容的减少而先减少后增加,随着谐振电感的减少而先减少后增加,随着寄生电阻的增加而增加。

Analysis of compensation network of S-LCC radio energytransmission system

To analyze the influence of compensation network parameters on transmission characteristics in the radio energy transmission system with S-LCC topology, firstly, the loop circuit equation is established by using the double coil equivalent circuit model, and the expression of system output power is derived. Secondly, the constant current and constant voltage characteristics of the system are discussed under different parameter conditions, Determine the relationship between the parameters of the compensation network aiming at the optimal output power, analyze the influence of load resistance, resonant inductance and parasitic resistance on the system output power, and build a double coil WPT physical system. The results show that the relationship between the primary and secondary side resonant capacitance with the optimal output power as the target can be accurately determined; With the increase of load resistance, the output power of the system increases first and then decreases, or increases first and then decreases, then increases and then decreases; The optimal load resistance decreases first and then increases with the decrease of resonant capacitance, decreases first and then