TY - GEN
T1 - Reduction of Switches and Flying Capacitors in a Hybrid Topology of the Stacked Multicell Converters
AU - Sadigh, Arash Khoshkbar
AU - Dargahi, Vahid
AU - Corzine, Keith A.
N1 - Publisher Copyright:
© 2019 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019/10
Y1 - 2019/10
N2 - This paper introduces a new full-bridge hybrid multilevel converter topology that is realized through combining the two-level leg and the multilevel leg based on the stacked multicell (SM) converters. The 50% reduction in the number of switching power cells, semiconductor devices, and the flying capacitors (FCs) are the profound advantages of the proposed topology in comparison with the standard SM converter. These features decrease the voltage rating of the capacitors as well as their stored energy, and the size and cost of the converter. This improvement is achieved by adding two line-frequency switches to the conventional topology. A modified phase-shifted-carrier pulse-width-modulation (PSC-PWM) strategy has been adopted to control the proposed topology, and consequently it demonstrates the outstanding feature of the natural-balance for FC voltages. Simulation results are provided to validate the proposed topology and its control technique.
AB - This paper introduces a new full-bridge hybrid multilevel converter topology that is realized through combining the two-level leg and the multilevel leg based on the stacked multicell (SM) converters. The 50% reduction in the number of switching power cells, semiconductor devices, and the flying capacitors (FCs) are the profound advantages of the proposed topology in comparison with the standard SM converter. These features decrease the voltage rating of the capacitors as well as their stored energy, and the size and cost of the converter. This improvement is achieved by adding two line-frequency switches to the conventional topology. A modified phase-shifted-carrier pulse-width-modulation (PSC-PWM) strategy has been adopted to control the proposed topology, and consequently it demonstrates the outstanding feature of the natural-balance for FC voltages. Simulation results are provided to validate the proposed topology and its control technique.
UR - http://www.scopus.com/inward/record.url?scp=85084046996&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85084046996&partnerID=8YFLogxK
U2 - 10.1109/IECON.2019.8927395
DO - 10.1109/IECON.2019.8927395
M3 - Conference contribution
AN - SCOPUS:85084046996
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 4977
EP - 4982
BT - Proceedings
PB - IEEE Computer Society
T2 - 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
Y2 - 14 October 2019 through 17 October 2019
ER -