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Efficient Multi-Port Bidirectional Converter With Soft-Switching Capability for Electric Vehicle Applications
- Source :
- IEEE Access, Vol 9, Pp 107079-107094 (2021)
- Publication Year :
- 2021
- Publisher :
- IEEE, 2021.
-
Abstract
- In this paper, to solve the hard-switching operation problem and the lack of existing a bidirectional power flow path from output to the energy storage device of the conventional three-port converter, a new soft-switched bidirectional multi-port converter is proposed. A large number of switches, different power flow paths which vary in each operating mode, and changing the outputs and their power levels are some of the challenges to provide soft-switching conditions in multi-port converters. In the proposed converter, by changing the topology of the conventional three-port converter, the bidirectional power exchangeability between ports is provided. Moreover, a soft-switching cell is added, which can operate independently from the output power levels. Less number of components with low volume is one of the important features of this multi-port converter. Due to the soft-switching operation of the proposed converter, the size of passive components and heat-sink is reduced. In addition, by the use of coupled inductors in the soft-switching cell, only one magnetic core is used and thus, single-stage power conversion is achieved and conduction loss is reduced. In this paper, the converter operating modes are presented, and design considerations are discussed. Finally, a 200 W-200 V prototype is implemented, and the theoretical analysis is validated by the experimental results. publishedVersion
- Subjects :
- Multi-port converter
General Computer Science
Computer science
213 Electronic, automation and communications engineering, electronics
General Engineering
electric vehicle
Topology (electrical circuits)
Converters
Inductor
Energy storage
Power (physics)
TK1-9971
Magnetic core
visual_art
Electronic component
Snubber
Electronic engineering
visual_art.visual_art_medium
soft-switching
hybrid power systems
General Materials Science
dc-dc converter
Electrical engineering. Electronics. Nuclear engineering
Subjects
Details
- Language :
- English
- ISSN :
- 21693536
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- IEEE Access
- Accession number :
- edsair.doi.dedup.....8e65cae873b0f196a56c095c9013c576