期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 33, 期 12, 页码 10277-10291出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2018.2806361
关键词
AC/DC converter; differential-mode (DM) active filter; electromagnetic interference (EMI); stability
资金
- National Science Foundation [1540118]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1540118] Funding Source: National Science Foundation
In this paper, the active differential-mode (DM) electromagnetic interference (EMI) filter topology for ac/dc converters is first briefly investigated. The active DM EMI filter model was developed based on the models of filter components including a current transformer, a high-pass filter, an operational amplifier, and a class AB amplifier. The system model including the active filter, ac/dc converter, and line impedance stabilization networks (LISNs) are explored. With the developed system model, the loop gain and insertion gain of the active filter are derived. Based on the loop gain, the stability of the active filter is investigated and the compensation is applied to achieve stability and good EMI reduction. Both simulations and experiments are conducted to validate the developed technique.
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