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一种基于改进型LISN和简化校准流程的开关电源

SMPS)噪声源阻抗提取方法

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中文摘要

本文提出并验证了一种在运行条件下提取开关电源(SMPS)噪声源阻抗的方法。首先,引入了一种利用已知阻抗进行简化预校准的方法,以消除测量仪器及寄生效应的影响。其次,介绍了该方法的配置及计算流程。

English Abstract

A noise source impedance extraction method for switched-mode power supply (SMPS) under operating condition is proposed and validated in this letter. First, a simplified precalibration method using several known impedances is introduced to eliminate the influence of measurement instruments and other parasitic effects. Second, the configuration of the proposed method is presented and the calculation...
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SunView 深度解读

电磁兼容(EMC)是光伏逆变器和储能变流器(PCS)设计中的关键挑战。该方法通过改进LISN校准流程,能更精确地提取运行状态下的噪声源阻抗,有助于优化阳光电源组串式逆变器及PowerTitan系列储能系统的滤波器设计,从而在满足严苛电磁干扰标准的同时,缩小滤波器体积并降低成本。建议研发团队将其应用于高功率密度产品的EMI抑制优化中,提升产品在复杂电网环境下的电磁兼容性能。