摘要
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。
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.
出处
《电力电子技术》
CSCD
北大核心
2017年第4期105-107,共3页
Power Electronics
关键词
变压器
电磁耦合
能量平衡
transformer
electromagnetic coupling
energy-balance
