A Review of Single-Stage Multiport Inverters for Multisource Applications

Conventional power electronic interfaces for multisource applications always need multiple conversion stages as intermediate dc-dc power conversion stages are inevitably installed for matching the different dc voltage levels and regulating the power distribution among dc sources. Dually, single-stag...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2023-05, Vol.38 (5), p.6566-6584
Main Authors: Huang, Zhengqin, Zhou, Dehong, Wang, Longguang, Shen, Zewei, Li, Yunwei
Format: Article
Language:English
Subjects:
Capacitors
Energy conversion
Energy management
Inverters
Load flow analysis
Modulation
Multiport inverters
multisource system
Passive filters
power management
pulsewidth modulation
single-stage power conversion
Switches
Topology
topology derivation
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Summary:Conventional power electronic interfaces for multisource applications always need multiple conversion stages as intermediate dc-dc power conversion stages are inevitably installed for matching the different dc voltage levels and regulating the power distribution among dc sources. Dually, single-stage multiport inverter for multisource applications enables direct connection from the dc source to ac side without an extra conversion stage and has witnessed an upward trend in recent years. The salient advantages of single-stage multiport inverters comprise fewer power losses, fewer passive filters, and higher system efficiency. To capture the advancement in the field, the article reviews various single-stage multiport inverters for multisource applications, offers a comprehensive understanding of the current development of this configuration, and provides an insightful forward look at potential research issues of single-stage multiport inverters. This article presents various state-of-the-art single-stage multiport topologies as well as their applications and comparisons. In addition, systemic topology derivation methods of single-stage multiport inverters are discussed to provide inspiration for exploring new topologies. Moreover, the main challenging issues of this topology, such as modulation, control, and energy management strategies are analyzed and summarized. Finally, some open questions and future trends of single-stage multiport inverters are also discussed to motivate future research and explore new alternatives.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2023.3234358