TY - GEN
T1 - An improved circulating current control startegy for modular multilevel converters through redundant voltage levels
AU - Chen, Xingxing
AU - Liu, Jinjun
AU - Ouyang, Shaodi
AU - Song, Shuguang
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016
Y1 - 2016
N2 - This paper first introduces an existing circulating current controller for modular multilevel converter (MMC) through redundant voltage levels with detailed analysis for the controlled circulating current. To further reduce the peak-to-peak value of the circulating current at switching frequency and decrease the total control error, a fixed-band redundant state transition principle is put forward in this paper, so that the circulating current can be approximately limited within the fixed-band. Compared to traditional control methods, the main advantages of the proposed strategy are unaffected arm voltage reference, simple implementation, reduced switching frequency and very fast dynamic performance. Simulation results verified the effectiveness of the proposed control strategy.
AB - This paper first introduces an existing circulating current controller for modular multilevel converter (MMC) through redundant voltage levels with detailed analysis for the controlled circulating current. To further reduce the peak-to-peak value of the circulating current at switching frequency and decrease the total control error, a fixed-band redundant state transition principle is put forward in this paper, so that the circulating current can be approximately limited within the fixed-band. Compared to traditional control methods, the main advantages of the proposed strategy are unaffected arm voltage reference, simple implementation, reduced switching frequency and very fast dynamic performance. Simulation results verified the effectiveness of the proposed control strategy.
KW - Circulating current
KW - fixed-band
KW - modular multilevel converter (MMC)
KW - redundant voltage levels
UR - https://www.scopus.com/pages/publications/85015301373
U2 - 10.1109/SPEC.2016.7846003
DO - 10.1109/SPEC.2016.7846003
M3 - 会议稿件
AN - SCOPUS:85015301373
T3 - 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016
BT - 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016
Y2 - 5 December 2016 through 8 December 2016
ER -