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测量电路不对称性对三相共模/差模传导EMI分离影响的分析

Analysis of the Influence of Measurement Circuit Asymmetries on Three-Phase CM/DM Conducted EMI Separation

语言:

中文摘要

随着宽禁带半导体在高频、高速开关应用中的普及,电力电子设备的传导电磁干扰(EMI)问题日益突出。本文重点研究了共模(CM)/差模(DM)噪声分离器中测量电路不对称性对噪声分离精度的影响,为准确评估和抑制电力电子系统的EMI噪声提供了理论依据与优化方法。

English Abstract

Electromagnetic interference (EMI) conducted emissions (CE) are of increasing concern in power electronics due to the high switching frequency and fast switching speeds of the latest generation of wide-bandgap semiconductors. The decomposition of the total conducted EMI noise into its common-mode (CM) and differential-mode (DM) part by means of a CM/DM noise separator is a useful tool that allows ...
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SunView 深度解读

该研究对阳光电源全系列产品(特别是组串式逆变器和PowerTitan储能系统)具有重要指导意义。随着公司产品向高功率密度、高开关频率(SiC器件应用)演进,EMI合规性挑战加剧。本文提出的测量电路不对称性分析方法,可直接应用于研发阶段的EMI滤波器设计与优化,提升测试精度,缩短认证周期。建议在iSolarCloud智能运维平台的底层硬件设计及高频功率模块开发中,引入该分析模型,以降低系统传导干扰,提升产品电磁兼容性与运行可靠性。