基于DC/AC逆变电源交/直流侧传导EMI噪声机理建模  

Noise mechanism modeling of conducted EMI on AC/DC side based on DC/AC inverter

作　　者：孙红艳[1] 赵阳[2] 李世锦[2] 

机构地区：[1]南京师范大学泰州学院,江苏泰州225300 [2]南京师范大学电气与自动化工程学院,江苏南京210046

出　　处：《现代电子技术》2015年第22期135-138,共4页Modern Electronics Technique

基　　金：2011年江苏省自然科学基金:非标环境电磁兼容诊断关键技术及装置研制(BK2011789);2012年南京师范大学泰州学院校级项目:可再生能源电能转换系统的传导电磁干扰关键技术研究(Z201209)

摘　　要：针对DC/AC逆变电源交/直流侧的传导EMI噪声机理特性,提出直流侧噪声源内阻抗建模方法,理论分析了不同工作模式下交流侧的传导EMI噪声共模/差模噪声传输机理模型和控制参数影响下的噪声建模方法,最后对DC/AC逆变器直流侧噪声源内阻抗进行了提取实验,利用仿真分析控制参数对交流侧传导EMI噪声的影响,该研究内容为DC/AC逆变电源传导EMI问题的解决提供了一定的理论与实践参考。For the noise mechanism characteristics of the conducted EMI on AC/DC side of DC/AC inverter, the internal impedance modeling method of noise source on DC side is proposed. The common mode/difference mode transmission mechanism models of the conduced EMI noise on AC side under different working-modes, and noise modeling method influencing by the control parameters are analyzed theoretically. Extraction experiments for the noise source internal impedance on DC side of the DC/AC inverter were conducted. The influence of control parameters on the conducted EMI noise on AC side was analyzed by simulation. The research content in this paper provides a certain theoretical and practical references for solving the conduced EMI problem of the DC/AC inverter.

关 键 词：DC/AC逆变电源 交/直流侧 传导EMI 噪声机理 噪声建模 

分 类 号：TN97-34[电子电信—信号与信息处理]