磁性元件近场磁耦合仿真分析

Artificial Analysis of Near Field Magnetic Coupling of the Magnetic Elements

磁性元件如电感、共模电感、变压器等均是功率变换器中的重要组成部分,它们的摆放位置与布线方式都有可能影响其对电磁干扰噪声的抑制作用。由于功率变换器越来越小型化,高功率密度化,其元器件放置都十分紧凑,各元器件间存在着近场耦合效应。本文分析了磁性元件间近场磁耦合机理并通过实验来验证仿真所得到的磁性元件间近场磁耦合参数的准确性。

Magnetic elements such as, inductance, common-mode inductcence, transformer and so on are important parts of power transformers. Their setting places and wiring ways can affect the inhibitory action on electromagnetic interferfer- ence noise. As power inverter is more and more miniaturization and high power density, their elements are compactly placed. The near field coupling effect exists among vaouris elements. The paper analyzes the near field magnetic coupling mechanism between magnetic elements and verified correctness of the near field mugnetic coupling parameters between the magnetic elements by experiment.