TY - GEN
T1 - Zero-Phase-Filtering based Digital Active EMI Filter
AU - Narayanasamy, Balaji
AU - Peng, Hongwu
AU - Yuan, Zhao
AU - Luo, Fang
AU - Chu, Yongbin
N1 - Publisher Copyright: © 2020 IEEE.
PY - 2020/11/29
Y1 - 2020/11/29
N2 - Zero-phase filtering is a methodology of achieving filtering without any phase distortion. This methodology is applied to digital active EMI filters to enhance the attenuation at frequencies from 100 kHz to 1 MHz. The methodology for implementing zero-phase filtering in an FPGA are presented. The novel filter is then demonstrated in a feed-forward voltage- sense voltage-cancellation active EMI filter for differential mode noise attenuation. The proposed filter is tested with small signal source and as well in a power converter. The test results show that the proposed filter can have up to 46 dB attenuation around 150 kHz and have a bandwidth of a few MHz.
AB - Zero-phase filtering is a methodology of achieving filtering without any phase distortion. This methodology is applied to digital active EMI filters to enhance the attenuation at frequencies from 100 kHz to 1 MHz. The methodology for implementing zero-phase filtering in an FPGA are presented. The novel filter is then demonstrated in a feed-forward voltage- sense voltage-cancellation active EMI filter for differential mode noise attenuation. The proposed filter is tested with small signal source and as well in a power converter. The test results show that the proposed filter can have up to 46 dB attenuation around 150 kHz and have a bandwidth of a few MHz.
KW - ac-dc power converters
KW - digital active EMI filters
KW - linear-phase filters
KW - zero-phase filtering
UR - https://www.scopus.com/pages/publications/85103183543
U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9367786
DO - 10.1109/IPEMC-ECCEAsia48364.2020.9367786
M3 - Conference contribution
T3 - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
SP - 1910
EP - 1917
BT - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Y2 - 29 November 2020 through 2 December 2020
ER -