TY - GEN
T1 - Analysis and suppression of the input second harmonic current in two-stage inverter
AU - Lei, Ren
AU - Zhao, Yao
AU - Gong, Chunying
AU - Deng, Xiang
AU - Wei, Zheng
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/2/24
Y1 - 2014/2/24
N2 - The instantaneous output power of a two-stage single-phase inverter pulsates at twice the output voltage frequency, generating second harmonic current (SHC) in the front-end dc-dc converter. Though reducing the SHC of the output filter inductor of the dc-dc converter (FIDC) can reduce the input SHC effectively, it depends on the capacitance of DC bus capacitor totally. In order to reduce the SHC of the input port more effectively, a control strategy is proposed in this paper, which extracts the SHC of the input port into the inductor current feedback path by a multiplier and a band-pass filter. The proposed control scheme can not only reduce the SHC significantly, but also is beneficial to improving the dynamic performance of the front-end dc-dc converter. Finally, a 1500-VA prototype is built, and the simulation results are presented to verify the effectiveness of the proposed control strategy.
AB - The instantaneous output power of a two-stage single-phase inverter pulsates at twice the output voltage frequency, generating second harmonic current (SHC) in the front-end dc-dc converter. Though reducing the SHC of the output filter inductor of the dc-dc converter (FIDC) can reduce the input SHC effectively, it depends on the capacitance of DC bus capacitor totally. In order to reduce the SHC of the input port more effectively, a control strategy is proposed in this paper, which extracts the SHC of the input port into the inductor current feedback path by a multiplier and a band-pass filter. The proposed control scheme can not only reduce the SHC significantly, but also is beneficial to improving the dynamic performance of the front-end dc-dc converter. Finally, a 1500-VA prototype is built, and the simulation results are presented to verify the effectiveness of the proposed control strategy.
UR - https://www.scopus.com/pages/publications/84949928437
U2 - 10.1109/IECON.2014.7049132
DO - 10.1109/IECON.2014.7049132
M3 - 会议稿件
AN - SCOPUS:84949928437
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 4192
EP - 4197
BT - IECON Proceedings (Industrial Electronics Conference)
PB - Institute of Electrical and Electronics Engineers Inc.
ER -