Grid-Forming Fuel Cell System for an Islanded AC Grid

This paper proposes a two-stage converter that can black start an isolated AC Microgrid with a Fuel Cell (FC) as the primary energy source. The first stage is connected to the FC and employs a Three-Leg Interleaved Boost DC/DC Converter (IBC), while the second is a Three-Phase Voltage Source Conver...

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Main Authors: João M. T. do Amaral, Janito S. Ramos, Carolina C. M. de Souza, Giulia J. da Silva, Emanuel L. van Emmerik, Robson F. S. Dias
Format: Article
Language:English
Published: Associação Brasileira de Eletrônica de Potência 2024-12-01
Series:Eletrônica de Potência
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Online Access:https://journal.sobraep.org.br/index.php/rep/article/view/982
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author João M. T. do Amaral
Janito S. Ramos
Carolina C. M. de Souza
Giulia J. da Silva
Emanuel L. van Emmerik
Robson F. S. Dias
author_facet João M. T. do Amaral
Janito S. Ramos
Carolina C. M. de Souza
Giulia J. da Silva
Emanuel L. van Emmerik
Robson F. S. Dias
author_sort João M. T. do Amaral
collection DOAJ
description This paper proposes a two-stage converter that can black start an isolated AC Microgrid with a Fuel Cell (FC) as the primary energy source. The first stage is connected to the FC and employs a Three-Leg Interleaved Boost DC/DC Converter (IBC), while the second is a Three-Phase Voltage Source Converter (VSC). The DC/DC stage utilizes a Cascade Voltage Control (CVC) to mitigate voltage fluctuations in the DC-link caused by the variability of the FC voltage. For the DC/AC stage, three distinct grid-forming (GFM) strategies are implemented with two of them with multi-loop cascaded structure and one with a single-loop structure. The power circuit of the system is simulated using the Real-Time Simulator (RTS) HIL 602+ from Typhoon-HIL, with the control strategies embedded on the Digital Signal Processor (DSP) TMS320F28379D - F28379D LaunchPad from Texas Instruments (TI). The performance of the cases are verified through CHIL simulations for a balanced and unbalanced inductive load steps. The results demonstrate that for both tests the GFM single loop structure presents smoother transients and shorter recovery times. Additionally, for the unbalanced loads, all the cases present similar results for the DC variables with more pronounced differences at the AC side.
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issn 1414-8862
1984-557X
language English
publishDate 2024-12-01
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series Eletrônica de Potência
spelling doaj-art-f745ee7753224e02aac58d26625cbb1c2024-12-16T18:07:17ZengAssociação Brasileira de Eletrônica de PotênciaEletrônica de Potência1414-88621984-557X2024-12-012910.18618/REP.e202457Grid-Forming Fuel Cell System for an Islanded AC GridJoão M. T. do Amaral0https://orcid.org/0009-0009-6245-9101Janito S. Ramos1https://orcid.org/0009-0002-9019-7443Carolina C. M. de Souza2https://orcid.org/0009-0006-5886-7530Giulia J. da Silva3https://orcid.org/0009-0008-3720-6981Emanuel L. van Emmerik4https://orcid.org/0000-0002-9067-3692Robson F. S. Dias5https://orcid.org/0000-0002-5281-9179Universidade Federal do Rio de Janeiro Universidade Federal do Rio de Janeiro Universidade Federal do Rio de Janeiro Universidade Federal do Rio de Janeiro Universidade Federal do Rio de Janeiro Universidade Federal do Rio de Janeiro This paper proposes a two-stage converter that can black start an isolated AC Microgrid with a Fuel Cell (FC) as the primary energy source. The first stage is connected to the FC and employs a Three-Leg Interleaved Boost DC/DC Converter (IBC), while the second is a Three-Phase Voltage Source Converter (VSC). The DC/DC stage utilizes a Cascade Voltage Control (CVC) to mitigate voltage fluctuations in the DC-link caused by the variability of the FC voltage. For the DC/AC stage, three distinct grid-forming (GFM) strategies are implemented with two of them with multi-loop cascaded structure and one with a single-loop structure. The power circuit of the system is simulated using the Real-Time Simulator (RTS) HIL 602+ from Typhoon-HIL, with the control strategies embedded on the Digital Signal Processor (DSP) TMS320F28379D - F28379D LaunchPad from Texas Instruments (TI). The performance of the cases are verified through CHIL simulations for a balanced and unbalanced inductive load steps. The results demonstrate that for both tests the GFM single loop structure presents smoother transients and shorter recovery times. Additionally, for the unbalanced loads, all the cases present similar results for the DC variables with more pronounced differences at the AC side. https://journal.sobraep.org.br/index.php/rep/article/view/982Grid-FormingFuel CellVoltage-Source ConverterHardware-in-the-Loop
spellingShingle João M. T. do Amaral
Janito S. Ramos
Carolina C. M. de Souza
Giulia J. da Silva
Emanuel L. van Emmerik
Robson F. S. Dias
Grid-Forming Fuel Cell System for an Islanded AC Grid
Eletrônica de Potência
Grid-Forming
Fuel Cell
Voltage-Source Converter
Hardware-in-the-Loop
title Grid-Forming Fuel Cell System for an Islanded AC Grid
title_full Grid-Forming Fuel Cell System for an Islanded AC Grid
title_fullStr Grid-Forming Fuel Cell System for an Islanded AC Grid
title_full_unstemmed Grid-Forming Fuel Cell System for an Islanded AC Grid
title_short Grid-Forming Fuel Cell System for an Islanded AC Grid
title_sort grid forming fuel cell system for an islanded ac grid
topic Grid-Forming
Fuel Cell
Voltage-Source Converter
Hardware-in-the-Loop
url https://journal.sobraep.org.br/index.php/rep/article/view/982
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AT janitosramos gridformingfuelcellsystemforanislandedacgrid
AT carolinacmdesouza gridformingfuelcellsystemforanislandedacgrid
AT giuliajdasilva gridformingfuelcellsystemforanislandedacgrid
AT emanuellvanemmerik gridformingfuelcellsystemforanislandedacgrid
AT robsonfsdias gridformingfuelcellsystemforanislandedacgrid