摘要
与传统的插电式充电方式相比,无线充电方式具有无接触火花、对充电环境要求较低的特点,因此在电动汽车系统中存在广阔的应用前景。此处研究了无线充电系统中的松散耦合变压器的优化,通过有限元仿真及实验测量,分析不同线圈覆盖面积和磁芯摆放位置情况下的耦合系数变化。最后通过实验测试了不同偏移下装置的耦合系数,证明了优化的正确性。
Compared with conventional plug-in charging methods,wireless charging method is insensitive to environment and without contact spark.Therefore, this technology is promising in electric vehicle applications.Optimizations of loosely coupled transformer are carried out by finite element method and experiment measurement.The coupled coefficient varying with different coverage area of windings and positions of magnetic cores are analyzed and discussed.Finally, some test results are given when considering the misalignment of secondary plate.
出处
《电力电子技术》
CSCD
北大核心
2015年第10期1-3,共3页
Power Electronics
关键词
无线充电
松散耦合变压器
耦合系数
wireless charging
loosely coupled transformer
coupled coefficient
