Journal
IEEE OPEN JOURNAL OF THE INDUSTRIAL ELECTRONICS SOCIETY
Volume 2, Issue -, Pages 112-127Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/OJIES.2021.3054666
Keywords
Topology; Capacitors; Voltage control; Switches; Multilevel inverters; Industrial electronics; Control systems; Single DC-source; multilevel inverters; MLI; SDCS-MLI; 5-level; reduced components count; industrial applications
Categories
Funding
- Qatar National Library
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This paper reviews the available topologies and future trends of Single-DC-Source Multilevel Inverters, highlighting their advantages in renewable energy applications. Analysis of the topologies, advantages, limitations, and recommendations for future research are provided.
Having a reduced number of switches and isolated DC sources yet generating a higher number of voltage levels has been always the challenge when selecting the appropriate Multilevel Inverter (MLI) topology. Nowadays, Single-DC-Source Multilevel Inverter (SDCS-MLI) topologies are being considered as more suitable for many power system applications such as Renewable Energy (RE) conversion systems and electrified transportations compared to the Multiple-DC-Source MLIs (MDCS-MLIs). Moreover, increasing the power rating and minimizing the switching frequency while maintaining reasonable power quality using a SDCS-MLI is an important requirement and a persistent challenge for the industry. Thus, this paper presents a general review on the available SDCS-MLI topologies and future trends. Existing solutions are discussed and analyzed based on their topologies, number of output voltage levels, number of active/passive components, advantages/limitations, maturity, and industrial applications. Furthermore, recommendations for future research and development are suggested in this paper.
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