TY - GEN
T1 - Simplified direct modulation prediction approach for modular multilevel converter
AU - Huang, Jingjing
AU - Sun, Yuangang
AU - Zhang, Xiaotong
AU - Tong, Xiangqian
AU - Gao, Shi
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/15
Y1 - 2017/12/15
N2 - This paper presents a simplified direct modulation prediction approach for modular multilevel converters (MMC). By using the Euler approximation, the grid-side and circulating currents are firstly predicted to obtain the values in the next switching cycle. Then the modulations are directly calculated based on the established mathematical models for the six-arms of MMC. Subsequently, the capacitor voltage balancing control is designed according to the total on-state submodules (SMs) of each arm, aiming at reducing the computational burden. Finally, proper pulse width modulation (PWM) can be obtained based on proposed control strategy. The effectiveness of the proposed method is verified by both the simulation and experimental results. Besides, compared with the conventional method, the superiority of the proposed approach is increasing with the voltage levels to lessen the computational burden.
AB - This paper presents a simplified direct modulation prediction approach for modular multilevel converters (MMC). By using the Euler approximation, the grid-side and circulating currents are firstly predicted to obtain the values in the next switching cycle. Then the modulations are directly calculated based on the established mathematical models for the six-arms of MMC. Subsequently, the capacitor voltage balancing control is designed according to the total on-state submodules (SMs) of each arm, aiming at reducing the computational burden. Finally, proper pulse width modulation (PWM) can be obtained based on proposed control strategy. The effectiveness of the proposed method is verified by both the simulation and experimental results. Besides, compared with the conventional method, the superiority of the proposed approach is increasing with the voltage levels to lessen the computational burden.
KW - Euler approximation
KW - circulating currents
KW - modular multilevel converters (MMC)
KW - voltage balancing control
UR - https://www.scopus.com/pages/publications/85046650696
U2 - 10.1109/IECON.2017.8216783
DO - 10.1109/IECON.2017.8216783
M3 - 会议稿件
AN - SCOPUS:85046650696
T3 - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
SP - 4551
EP - 4556
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 -