TY - JOUR
T1 - Voltage Source Multilevel Inverters with Reduced Device Count
T2 - Topological Review and Novel Comparative Factors
AU - Salem, Ahmed
AU - Van Khang, Huynh
AU - Robbersmyr, Kjell G.
AU - Norambuena, Margarita
AU - Rodriguez, Jose
N1 - Publisher Copyright:
© 1986-2012 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/3
Y1 - 2021/3
N2 - Multilevel inverters (MLIs) have gained increasing interest for advanced energy-conversion systems due to their features of high-quality produced waveforms, modularity, transformerless operation, voltage, and current scalability, and fault-tolerant operation. However, these merits usually come with the cost of a high number of components. Over the past few years, proposing new MLIs with a lower component count has been one of the most active topics in power electronics. The first aim of this article is to update and summarize the recently developed multilevel topologies with a reduced component count, based on their advantages, disadvantages, construction, and specific applications. Within the framework, both single-phase and three-phase topologies with symmetrical and asymmetrical operations are taken into consideration via a detailed comparison in terms of the used component count and type. The second objective is to propose a comparative method with novel factors to take component ratings into account. The effectiveness of the proposed method is verified by a comparative study.
AB - Multilevel inverters (MLIs) have gained increasing interest for advanced energy-conversion systems due to their features of high-quality produced waveforms, modularity, transformerless operation, voltage, and current scalability, and fault-tolerant operation. However, these merits usually come with the cost of a high number of components. Over the past few years, proposing new MLIs with a lower component count has been one of the most active topics in power electronics. The first aim of this article is to update and summarize the recently developed multilevel topologies with a reduced component count, based on their advantages, disadvantages, construction, and specific applications. Within the framework, both single-phase and three-phase topologies with symmetrical and asymmetrical operations are taken into consideration via a detailed comparison in terms of the used component count and type. The second objective is to propose a comparative method with novel factors to take component ratings into account. The effectiveness of the proposed method is verified by a comparative study.
KW - Asymmetric operation
KW - comparison factor
KW - component for each level (CEL)
KW - dc-ac converter
KW - multilevel inverter (MLI)
KW - single-phase
KW - symmetric operation
KW - three-phase
UR - http://www.scopus.com/inward/record.url?scp=85095721662&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2020.3011908
DO - 10.1109/TPEL.2020.3011908
M3 - Article
AN - SCOPUS:85095721662
VL - 36
SP - 2720
EP - 2747
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
SN - 0885-8993
IS - 3
M1 - 9149829
ER -