Current Feedback Based Hybrid Common-Mode EMI Filter for Grid-Tied Inverter Application

被引：0
|
作者：
Li, Ming [1 ]
Shen, Miaosen [1 ]
Xing, Lei [1 ]
Said, Waleed [2 ]
机构：
[1] United Technol Res Ctr, Dept Syst, E Hartford, CT 06108 USA
[2] Hamilton Sunstrand, Rockford, IL 61108 USA
来源：
2012 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2012年
关键词：
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 current feedback based hybrid common-mode EMI filter is presented for grid-tied inverter application, which employs passive filter with parallel damping branch. A current transformer is used to sense the target common-mode (CM) current, and the active circuit injects cancelation CM current via coupling capacitor. In particular, the proposed hybrid EMI filter with 2nd order high pass filter characteristic equivalently enhances the filter capacitance at high frequency range. Standalone and offline experimental results based on grid tied three-phase inverter system show that the proposed hybrid filter can improve the EMI attenuation by 10 similar to 20 dB beyond 150 kHz.
引用
收藏
页码：1394 / 1398
页数：5
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