A New Approach for Improving Stability of Active CM EMI Filters for AC/DC Power Converters

被引：0
|
作者：
Dai, Liyu [1 ]
Chen, Wenjie [1 ]
Wang, Rui [1 ]
Yang, Yang [1 ]
Zhou, Yongxing [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect Engn, Xian, Shaanxi, Peoples R China
来源：
2018 IEEE INTERNATIONAL POWER ELECTRONICS AND APPLICATION CONFERENCE AND EXPOSITION (PEAC) | 2018年
关键词：
Active EMI filters; CM noise; modeling; stability; parameters study;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a new approach for improving stability of active common-mode (CM) electromagnetic interference (EMI) filters is presented. The system model was developed based on the models of critical components including a current transformer (CT), a current feedback amplifier (CFA) circuit and injection RC network. The system model is more accurate and efficient, taking full account of the model of high frequency zero-pole and gain error of the CFA, the high frequency parasitic parameters of the current transformer and the injection network. Based on the system model, the loop gain and key parameters study are derived and presented. Both simulations and experiments are conducted to verified the developed model and the approach.
引用
收藏
页码：1406 / 1409
页数：4
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