TY - GEN
T1 - An Improved Stacked Multicell Converter with Fault Tolerant Capability Using Finite-Control-Set Model Predictive Control
AU - Yuan, Zhige
AU - Faraji, Faramarz
AU - Ghias, Amer M.Y.M.
AU - Cha, Honnyong
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The stacked multicell (SMC) converter suffers from low-frequency voltage fluctuations in the neutral point (NP), which gets substantially larger at specific operating conditions and affects the safe operation of the converter. This paper proposes an improved SMC (ISMC) converter to cope with this shortcoming. A finite control set model predictive control (FCS-MPC) strategy is designed to accurately track the output current and voltage balancing across the flying capacitors (FC). With this strategy, a fault-tolerant ability of the proposed converter is also presented. A post-fault reconfiguration of the controller is proposed to achieve FC voltage balancing under bidirectional switch faults. Simulation results under steady-state, dynamic, and faulty operating conditions justify the feasibility of the proposed converter.
AB - The stacked multicell (SMC) converter suffers from low-frequency voltage fluctuations in the neutral point (NP), which gets substantially larger at specific operating conditions and affects the safe operation of the converter. This paper proposes an improved SMC (ISMC) converter to cope with this shortcoming. A finite control set model predictive control (FCS-MPC) strategy is designed to accurately track the output current and voltage balancing across the flying capacitors (FC). With this strategy, a fault-tolerant ability of the proposed converter is also presented. A post-fault reconfiguration of the controller is proposed to achieve FC voltage balancing under bidirectional switch faults. Simulation results under steady-state, dynamic, and faulty operating conditions justify the feasibility of the proposed converter.
KW - finite control set model predictive control
KW - multilevel converter
KW - SMC
UR - http://www.scopus.com/inward/record.url?scp=85174246203&partnerID=8YFLogxK
U2 - 10.1109/IESES53571.2023.10253684
DO - 10.1109/IESES53571.2023.10253684
M3 - Conference contribution
AN - SCOPUS:85174246203
T3 - 2023 IEEE 3rd International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2023
BT - 2023 IEEE 3rd International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2023
Y2 - 26 July 2023 through 28 July 2023
ER -
