High Efficiency Power Converter for a Doubly-fed SOEC/SOFC System

Kevin Tomas Manez; Alexander Anthon; Zhe Zhang

doi:10.1109/APEC.2016.7468026

High Efficiency Power Converter for a Doubly-fed SOEC/SOFC System

Kevin Tomas Manez, Alexander Anthon, Zhe Zhang

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

Regenerative fuel cells (RFC) have become an attractive technology for energy storage systems due to their high energy density and lower end-of-life disposal concerns. However, high efficiency design of power conditioning unit (PCU) for RFC becomes challenging due to their asymmetrical currentpower characteristics that are dependent on the operation mode (energy storage / energy supply). This paper proposes a new PCU architecture for grid-tie RFC with which the RFC’s asymmetrical characteristic becomes less critical and thus a much more symmetrical power rating of the dc-dc converter for both
operating modes is possible. This paper discusses the design considerations for this novel PCU, and verifies its operation principle with Matlab/Simulink simulations. Experimental results on a tailored dc-dc converter confirm the design simplifications for high efficiency operation along the entire power operating range of the RFC as well as the utilization of the same control strategy design for the two RFC operating modes.

Original language	English
Title of host publication	Proceedings of 2016 IEEE Applied Power Electronics Conference and Exposition
Publisher	IEEE
Publication date	2016
Pages	1235 - 1242
ISBN (Print)	978-1-4673-8393-6
DOIs	https://doi.org/10.1109/APEC.2016.7468026
Publication status	Published - 2016
Event	IEEE Applied Power Electronics Conference 2016 - Long Beach Convention & Entertainment Center, Long Beach, CA, United States Duration: 20 Mar 2016 → 24 Mar 2016

Conference

Conference	IEEE Applied Power Electronics Conference 2016
Location	Long Beach Convention & Entertainment Center
Country	United States
City	Long Beach, CA
Period	20/03/2016 → 24/03/2016

Keywords

Bidirectional fuel cells
Power conditioning
Interleaved boost converter
Renewable energies
Grid tie

Access to Document

10.1109/APEC.2016.7468026

Apec2016Accepted author manuscript, 1.39 MB

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Cite this

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title = "High Efficiency Power Converter for a Doubly-fed SOEC/SOFC System",

abstract = "Regenerative fuel cells (RFC) have become an attractive technology for energy storage systems due to their high energy density and lower end-of-life disposal concerns. However, high efficiency design of power conditioning unit (PCU) for RFC becomes challenging due to their asymmetrical currentpower characteristics that are dependent on the operation mode (energy storage / energy supply). This paper proposes a new PCU architecture for grid-tie RFC with which the RFC{\textquoteright}s asymmetrical characteristic becomes less critical and thus a much more symmetrical power rating of the dc-dc converter for bothoperating modes is possible. This paper discusses the design considerations for this novel PCU, and verifies its operation principle with Matlab/Simulink simulations. Experimental results on a tailored dc-dc converter confirm the design simplifications for high efficiency operation along the entire power operating range of the RFC as well as the utilization of the same control strategy design for the two RFC operating modes.",

keywords = "Bidirectional fuel cells, Power conditioning, Interleaved boost converter, Renewable energies, Grid tie",

author = "{Tomas Manez}, Kevin and Alexander Anthon and Zhe Zhang",

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booktitle = "Proceedings of 2016 IEEE Applied Power Electronics Conference and Exposition",

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AU - Tomas Manez, Kevin

AU - Anthon, Alexander

AU - Zhang, Zhe

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N2 - Regenerative fuel cells (RFC) have become an attractive technology for energy storage systems due to their high energy density and lower end-of-life disposal concerns. However, high efficiency design of power conditioning unit (PCU) for RFC becomes challenging due to their asymmetrical currentpower characteristics that are dependent on the operation mode (energy storage / energy supply). This paper proposes a new PCU architecture for grid-tie RFC with which the RFC’s asymmetrical characteristic becomes less critical and thus a much more symmetrical power rating of the dc-dc converter for bothoperating modes is possible. This paper discusses the design considerations for this novel PCU, and verifies its operation principle with Matlab/Simulink simulations. Experimental results on a tailored dc-dc converter confirm the design simplifications for high efficiency operation along the entire power operating range of the RFC as well as the utilization of the same control strategy design for the two RFC operating modes.

AB - Regenerative fuel cells (RFC) have become an attractive technology for energy storage systems due to their high energy density and lower end-of-life disposal concerns. However, high efficiency design of power conditioning unit (PCU) for RFC becomes challenging due to their asymmetrical currentpower characteristics that are dependent on the operation mode (energy storage / energy supply). This paper proposes a new PCU architecture for grid-tie RFC with which the RFC’s asymmetrical characteristic becomes less critical and thus a much more symmetrical power rating of the dc-dc converter for bothoperating modes is possible. This paper discusses the design considerations for this novel PCU, and verifies its operation principle with Matlab/Simulink simulations. Experimental results on a tailored dc-dc converter confirm the design simplifications for high efficiency operation along the entire power operating range of the RFC as well as the utilization of the same control strategy design for the two RFC operating modes.

KW - Bidirectional fuel cells

KW - Power conditioning

KW - Interleaved boost converter

KW - Renewable energies

KW - Grid tie

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