TY - GEN
T1 - Back-To-back hybrid modular multilevel converters for ac motor drive
AU - Guan, Mingxu
AU - Li, Binbin
AU - Zhou, Shaoze
AU - Xu, Zigao
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/15
Y1 - 2017/12/15
N2 - Recently, modular multilevel converters (MMC) have attracted extensive research interest in the field of HVDC and motor drives. However in motor drives, it appears that the inherent problem of the fluctuation of capacitor voltage particularly at low frequencies limits its further application. This paper proposes a new back-To-back hybrid MMCs topology, of which one MMC is directly connected to the grid and another MMC that controlled to drive an AC motor is connected to the previous one with a DC bus. This paper proposes the corresponding control strategies to drive the motor in wide speed range with basically constant fluctuation of capacitor voltage under constant-load operation at the same time. The grid-side MMC is controlled to generate constant DC current to the DC bus while the motor-side MMC is regulated to generate a constant AC output current to maintain the load torque. The effectiveness of the topology and its control strategies are verified by Matlab/Simulink.
AB - Recently, modular multilevel converters (MMC) have attracted extensive research interest in the field of HVDC and motor drives. However in motor drives, it appears that the inherent problem of the fluctuation of capacitor voltage particularly at low frequencies limits its further application. This paper proposes a new back-To-back hybrid MMCs topology, of which one MMC is directly connected to the grid and another MMC that controlled to drive an AC motor is connected to the previous one with a DC bus. This paper proposes the corresponding control strategies to drive the motor in wide speed range with basically constant fluctuation of capacitor voltage under constant-load operation at the same time. The grid-side MMC is controlled to generate constant DC current to the DC bus while the motor-side MMC is regulated to generate a constant AC output current to maintain the load torque. The effectiveness of the topology and its control strategies are verified by Matlab/Simulink.
KW - Modular multilevel converter
KW - capacitor voltage fluctuation
KW - motor drive
UR - https://www.scopus.com/pages/publications/85046694448
U2 - 10.1109/IECON.2017.8216308
DO - 10.1109/IECON.2017.8216308
M3 - 会议稿件
AN - SCOPUS:85046694448
T3 - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
SP - 1822
EP - 1827
BT - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Y2 - 29 October 2017 through 1 November 2017
ER -