TY - GEN
T1 - Selective Digital Active EMI filtering using Resonant Controller
AU - Peng, Hongwu
AU - Narayanasamy, Balaji
AU - Emon, Asif Imran
AU - Yuan, Zhao
AU - Zhang, Rongxuan
AU - Luo, Fang
N1 - Publisher Copyright: © 2020 IEEE.
PY - 2020/7
Y1 - 2020/7
N2 - Conventional passive EMI filters are bulky and occupy up to 30% of converter volume and weight. Active EMI filters are a key technology that enables the reduction in the size of passive components. The performance of active EMI filters (AEF) with feedback control for volume reduction is limited by relatively low-gain on the feedback loop to ensure stability. A novel digital active EMI filter (DAEF) with resonant controller which provides ultra high-gain at frequencies of interest is demonstrated for DM noise attenuation. The filter consists of noise sensing circuit, resonant controller built in the Field Programmable Gate Array (FPGA), and noise injection circuit. The experimental test results show that the proposed EMI filter has 45 dB more attenuation at 150 kHz than the conventional passive EMI filter, which is also the highest attenuation reported in the DAEF literature.
AB - Conventional passive EMI filters are bulky and occupy up to 30% of converter volume and weight. Active EMI filters are a key technology that enables the reduction in the size of passive components. The performance of active EMI filters (AEF) with feedback control for volume reduction is limited by relatively low-gain on the feedback loop to ensure stability. A novel digital active EMI filter (DAEF) with resonant controller which provides ultra high-gain at frequencies of interest is demonstrated for DM noise attenuation. The filter consists of noise sensing circuit, resonant controller built in the Field Programmable Gate Array (FPGA), and noise injection circuit. The experimental test results show that the proposed EMI filter has 45 dB more attenuation at 150 kHz than the conventional passive EMI filter, which is also the highest attenuation reported in the DAEF literature.
KW - Conducted emission
KW - Field Programmable Gate Array (FPGA)
KW - digital active EMI filter
KW - resonant controller
UR - https://www.scopus.com/pages/publications/85091849751
U2 - 10.1109/EMCSI38923.2020.9191623
DO - 10.1109/EMCSI38923.2020.9191623
M3 - Conference contribution
T3 - 2020 IEEE International Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMCSI 2020
SP - 632
EP - 639
BT - 2020 IEEE International Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMCSI 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE International Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMCSI 2020
Y2 - 28 July 2020 through 28 August 2020
ER -