TY - JOUR
T1 - A Reduced Common-Mode Voltage Control Scheme for Three-Level H10 Converter Considering Dead-Time Effect
AU - Long, Bo
AU - Chen, Zhihao
AU - Hu, Chengkun
AU - Rodriguez, Jose
AU - Guerrero, Josep M.
AU - Zang, Xian
N1 - Publisher Copyright:
© 2024 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.
PY - 2024/2/1
Y1 - 2024/2/1
N2 - Common-mode voltage (CMV) has several negative effects on photovoltaic (PV) grid-connected systems and motor drives. To reduce CMV, converter topology improvement draws great interest, such as the novel three-level H8 converter topology. This converter has the potential to achieve low CMVs, but it suffers from CMV jumps during dead-time (DT), which is detrimental to the reduction of CMV. To solve this problem, this article proposes a three-level H10 converter and its modulation techniques considering the DT effect. First, by choosing a suitable combination of space vectors, two reduced CMV modulations (RCMVMs) are introduced. Second, to eliminate CMV jumps during DT when entering and leaving the zero voltage vector (ZVV) in RCMVMs, an H10 topology with control strategy, which applies active voltage vector (AVV) to ZVV period, is proposed. Finally, the applicable conditions of control strategy are analyzed. Simulation and experimental results are provided to demonstrate the effectiveness of the proposed scheme.
AB - Common-mode voltage (CMV) has several negative effects on photovoltaic (PV) grid-connected systems and motor drives. To reduce CMV, converter topology improvement draws great interest, such as the novel three-level H8 converter topology. This converter has the potential to achieve low CMVs, but it suffers from CMV jumps during dead-time (DT), which is detrimental to the reduction of CMV. To solve this problem, this article proposes a three-level H10 converter and its modulation techniques considering the DT effect. First, by choosing a suitable combination of space vectors, two reduced CMV modulations (RCMVMs) are introduced. Second, to eliminate CMV jumps during DT when entering and leaving the zero voltage vector (ZVV) in RCMVMs, an H10 topology with control strategy, which applies active voltage vector (AVV) to ZVV period, is proposed. Finally, the applicable conditions of control strategy are analyzed. Simulation and experimental results are provided to demonstrate the effectiveness of the proposed scheme.
KW - Common-mode voltage (CMV)
KW - dead-time (DT)
KW - H10 topology
UR - http://www.scopus.com/inward/record.url?scp=85177082712&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2023.3332368
DO - 10.1109/JESTPE.2023.3332368
M3 - Journal article
AN - SCOPUS:85177082712
SN - 2168-6777
VL - 12
SP - 695
EP - 706
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 1
ER -