TY - GEN
T1 - Efficiency Analysis of Conduction Losses in Modular Multilevel Converters with Parallel Functionality
AU - Tashakor, Nima
AU - Arabsalmanabadi, Bita
AU - Zhang, Yi
AU - Al-Haddad, Kamal
AU - Goetz, Stefan
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/11
Y1 - 2021/11
N2 - Modular multilevel converters (MMC) show great potential in high-voltage as well as emerging applications such as grid storage and electro mobility. The main advantages over the two-level converters include flexibility, scalability, and higher degrees of freedom. MMCs with series/parallel connectivity (MMSPC) are a more recent developed technology which can provide stable and efficient sensorless operation. However, although the additional parallel connection between the modules provides many advantages, it can change the equivalent resistance of the system and hence complicate the power loss analysis. This paper presents a simplified conduction loss calculation method based on equivalent resistance analysis for MMSPC. The presented method has the advantage of simplicity with relative accuracy that can speed up the process of loss analysis. Simulation results show that the accuracy of the presented method is above 95% percent for modulation indices above 0.5.
AB - Modular multilevel converters (MMC) show great potential in high-voltage as well as emerging applications such as grid storage and electro mobility. The main advantages over the two-level converters include flexibility, scalability, and higher degrees of freedom. MMCs with series/parallel connectivity (MMSPC) are a more recent developed technology which can provide stable and efficient sensorless operation. However, although the additional parallel connection between the modules provides many advantages, it can change the equivalent resistance of the system and hence complicate the power loss analysis. This paper presents a simplified conduction loss calculation method based on equivalent resistance analysis for MMSPC. The presented method has the advantage of simplicity with relative accuracy that can speed up the process of loss analysis. Simulation results show that the accuracy of the presented method is above 95% percent for modulation indices above 0.5.
KW - Conduction losses
KW - Equivalent resistance
KW - Modular Multilevel Converter
KW - Series/parallel connectivity
KW - System analysis
UR - https://www.scopus.com/pages/publications/85119525118
U2 - 10.1109/IECON48115.2021.9589964
DO - 10.1109/IECON48115.2021.9589964
M3 - Conference article published in proceeding or book
AN - SCOPUS:85119525118
T3 - IECON Proceedings (Industrial Electronics Conference)
BT - IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society
PB - IEEE Computer Society
T2 - 47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021
Y2 - 13 October 2021 through 16 October 2021
ER -