TY - GEN
T1 - A Unified Startup Control Strategy for Modular Multilevel Converters from Either AC Side or DC Side
AU - Wang, Jinyu
AU - Qi, Yang
AU - Zhang, Li
AU - Yu, Jiale
AU - Tang, Yi
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/29
Y1 - 2020/11/29
N2 - Modular multilevel converters (MMCs) are very promising and attractive in medium/high-voltage applications. This paper proposes a unified startup strategy for MMCs from either ac-side or dc-side based on a deadbeat predictive current control. With the developed control strategy, charging currents from both sides can be simultaneously regulated in a closed-loop manner with an excellent dynamic performance. Therefore, all the SM capacitors can be fast charged to the rated voltage value, guaranteeing a rapid and safety startup of MMCs. Moreover, conventional separated and complex controller design and parameter tuning are not necessary, which greatly reduces algorithm calculation burdens and structure complexities. Detailed development processes and design considerations of the proposed startup strategy are introduced and analyzed. The effectiveness and performance of the developed algorithm are verified by experiments.
AB - Modular multilevel converters (MMCs) are very promising and attractive in medium/high-voltage applications. This paper proposes a unified startup strategy for MMCs from either ac-side or dc-side based on a deadbeat predictive current control. With the developed control strategy, charging currents from both sides can be simultaneously regulated in a closed-loop manner with an excellent dynamic performance. Therefore, all the SM capacitors can be fast charged to the rated voltage value, guaranteeing a rapid and safety startup of MMCs. Moreover, conventional separated and complex controller design and parameter tuning are not necessary, which greatly reduces algorithm calculation burdens and structure complexities. Detailed development processes and design considerations of the proposed startup strategy are introduced and analyzed. The effectiveness and performance of the developed algorithm are verified by experiments.
KW - capacitor precharge
KW - deadbeat current control
KW - high-voltage direct current (HVDC) transmission
KW - modular multilevel converter (MMC)
KW - startup strategy
UR - https://www.scopus.com/pages/publications/85103156049
U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9368220
DO - 10.1109/IPEMC-ECCEAsia48364.2020.9368220
M3 - 会议稿件
AN - SCOPUS:85103156049
T3 - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
SP - 3026
EP - 3032
BT - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Y2 - 29 November 2020 through 2 December 2020
ER -