TY - GEN
T1 - Modified Control Strategy of Stacked Multicell Converter with Model Predictive Control
AU - Liao, Zehong
AU - Judge, Paul
AU - Merlin, Michael
AU - Finney, Stephen
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/12/23
Y1 - 2021/12/23
N2 - Owing to its symmetric and extendable circuit characteristics, the stacked multicell converter (SMC) can be configured to provide flexible voltage levels. Traditionally, achieving higher voltage levels of SMC requires extra stacked subcells resulting in extra device costs as well as power losses. To address this, modified capacitor voltage ratios of SMC for the improvement of output voltage resolution are proposed and studied in this paper. The motivation behind is to increase the switching voltage level of SMC meanwhile limiting the numbers of semiconductor devices and flying capacitors (FCs). By applying a model predictive control (MPC) algorithm with reduced computational burden, a SMC constructed with three stacked subcells is investigated under the seven/nine/eleven-level operation modes.
AB - Owing to its symmetric and extendable circuit characteristics, the stacked multicell converter (SMC) can be configured to provide flexible voltage levels. Traditionally, achieving higher voltage levels of SMC requires extra stacked subcells resulting in extra device costs as well as power losses. To address this, modified capacitor voltage ratios of SMC for the improvement of output voltage resolution are proposed and studied in this paper. The motivation behind is to increase the switching voltage level of SMC meanwhile limiting the numbers of semiconductor devices and flying capacitors (FCs). By applying a model predictive control (MPC) algorithm with reduced computational burden, a SMC constructed with three stacked subcells is investigated under the seven/nine/eleven-level operation modes.
KW - Capacitor voltage ratio
KW - Model predictive control (MPC)
KW - Multilevel converter
KW - Stacked multicell converter (SMC)
KW - Switching state redundancy
UR - https://www.scopus.com/pages/publications/85124250804
U2 - 10.1109/COMPEL52922.2021.9646046
DO - 10.1109/COMPEL52922.2021.9646046
M3 - Conference contribution
AN - SCOPUS:85124250804
T3 - 2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics, COMPEL 2021
BT - 2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics (COMPEL)
PB - Institute of Electrical and Electronics Engineers
T2 - 22nd IEEE Workshop on Control and Modelling of Power Electronics, COMPEL 2021
Y2 - 2 November 2021 through 5 November 2021
ER -