倍频ICPT系统松耦合变压器电磁耦合特性研究

摘要

In order to simulate electromagnetic coupling characteristics of the system,mutual-inductance circuit model is selected which is suitable for analyzing loosely coupled transformer (LCT) and energy balance principle is brought out based on the circuit-field model.The inductance is calculated and coupling coefficient is analyzed.Experiment is carried out and coupling coefficient is obtained under different voltages,air gaps and the positions of windings.The energy-balance method for inductance computation is verified by experimental data.Meanwhile,coupling coefficient is researched with impact factors which provides reference for parameters optimization and efficiency improving of the system.%为准确模拟系统的电磁耦合特性并研究有效提高传输效率的方法,选择适合分析松耦合变压器(LCT)的互感电路模型,基于场路耦合能量平衡原理计算电感参数和耦合系数,分析不同电压等级、气隙距离及耦合结构对耦合系数的影响.设计LCT电气参量测量实验,对基于能量平衡有限元法的计算结果进行验证.总结耦合系数的变化规律,为进一步优化系统参数和提高传输效率提供参考.