电力系统保护与控制2018，Vol.46Issue(7)：123-128,6.DOI:10.7667/PSPC170460
DC-DC变换器的差模传导干扰耦合通道建模分析
Modeling of differential mode conducted interference coupling channel of a DC-DC converter
摘要
Abstract
In order to implement the systematic analysis and prediction of differential mode conducted interference of power electronic devices,a method is proposed based on system identification to describe the characteristics of differential mode conducted interference coupling channel.This paper selects Buck converter as the research object,exerts Pseudo Random Signal (PBRS) between MOSFET drain-source as input signal and takes differential mode interference of power supply side as output signal.According to the extracted data,the system model of coupling channel is identified by the least square method.It is indicated that the experimental waveforms are consistent with the coupling channel model prediction results in terms of the time domain and frequency domain.Measuring the interference voltage between the drain-source of MOSFET as the input signal by use of the built model can predict the conducted interference of power supply side and achieve good results with the relative few measurements.关键词
传导干扰/耦合通道/差模/系统辨识/BuckKey words
conducted interference/coupling channel/differential mode/system identification/Buck引用本文复制引用
韩素敏,吴晓静,苗纪青..DC-DC变换器的差模传导干扰耦合通道建模分析[J].电力系统保护与控制,2018,46(7):123-128,6.基金项目
This work is supported by National Key Research and Development Program of China (No.2016YFC0600906).国家重点研发计划专项资助(2016YFC0600906) （No.2016YFC0600906）
河南省控制工程重点学科开放基金资助项目(KG2011-08) （KG2011-08）
河南省教育厅科学技术研究重点项目资助(14A510022) （14A510022）
河南省科技厅产学研合作项目资助(182107000019) （182107000019）
