Wide Operating Voltage Range Fuel Cell Battery Charger

Juan Carlos Hernandez Botella, Maria del Carmen Mira Albert, Gokhan Sen, Ole Cornelius Thomsen, Michael A. E. Andersen

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

DC-DC converters for fuel cell applications require wide voltage range operation due to the unique fuel cell characteristic curve. Primary parallel isolated boost converter (PPIBC) is a boost derived topology for low voltage high current applications reaching an efficiency figure up to 98.2 %. This paper proposes a new operation mode for extending the input and output voltage range in PPIBC. The proposed solution does not modify PPIBC power stage; the converter gain is modified by short-circuiting one of the parallel connected primary windings in the topology. The change in operation mode divides by two the converter input-to-output voltage gain. This allows covering the conditions when the fuel cell stack operates in the activation region (maximum output voltage) and increases the degrees of freedom for converter optimization. The transition between operating modes is studied because represents a change in the converter steadystate conditions. A solution is proposed based on precalculation of the duty cycle prior to the transition.
Original languageEnglish
JournalElektronika ir Elektrotechnika
Volume20
Issue number5
Pages (from-to)97-103
ISSN1392-1215
DOIs
Publication statusPublished - 2014

Keywords

  • Isolated boost
  • Fuel cell
  • Battery
  • Extended voltage range

Cite this

Hernandez Botella, J. C., Mira Albert, M. D. C., Sen, G., Thomsen, O. C., & Andersen, M. A. E. (2014). Wide Operating Voltage Range Fuel Cell Battery Charger. Elektronika ir Elektrotechnika, 20(5), 97-103. https://doi.org/10.5755/j01.eee.20.5.7107
Hernandez Botella, Juan Carlos ; Mira Albert, Maria del Carmen ; Sen, Gokhan ; Thomsen, Ole Cornelius ; Andersen, Michael A. E. / Wide Operating Voltage Range Fuel Cell Battery Charger. In: Elektronika ir Elektrotechnika. 2014 ; Vol. 20, No. 5. pp. 97-103.
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title = "Wide Operating Voltage Range Fuel Cell Battery Charger",
abstract = "DC-DC converters for fuel cell applications require wide voltage range operation due to the unique fuel cell characteristic curve. Primary parallel isolated boost converter (PPIBC) is a boost derived topology for low voltage high current applications reaching an efficiency figure up to 98.2 {\%}. This paper proposes a new operation mode for extending the input and output voltage range in PPIBC. The proposed solution does not modify PPIBC power stage; the converter gain is modified by short-circuiting one of the parallel connected primary windings in the topology. The change in operation mode divides by two the converter input-to-output voltage gain. This allows covering the conditions when the fuel cell stack operates in the activation region (maximum output voltage) and increases the degrees of freedom for converter optimization. The transition between operating modes is studied because represents a change in the converter steadystate conditions. A solution is proposed based on precalculation of the duty cycle prior to the transition.",
keywords = "Isolated boost, Fuel cell, Battery, Extended voltage range",
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Hernandez Botella, JC, Mira Albert, MDC, Sen, G, Thomsen, OC & Andersen, MAE 2014, 'Wide Operating Voltage Range Fuel Cell Battery Charger', Elektronika ir Elektrotechnika, vol. 20, no. 5, pp. 97-103. https://doi.org/10.5755/j01.eee.20.5.7107

Wide Operating Voltage Range Fuel Cell Battery Charger. / Hernandez Botella, Juan Carlos; Mira Albert, Maria del Carmen; Sen, Gokhan; Thomsen, Ole Cornelius; Andersen, Michael A. E.

In: Elektronika ir Elektrotechnika, Vol. 20, No. 5, 2014, p. 97-103.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Wide Operating Voltage Range Fuel Cell Battery Charger

AU - Hernandez Botella, Juan Carlos

AU - Mira Albert, Maria del Carmen

AU - Sen, Gokhan

AU - Thomsen, Ole Cornelius

AU - Andersen, Michael A. E.

PY - 2014

Y1 - 2014

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AB - DC-DC converters for fuel cell applications require wide voltage range operation due to the unique fuel cell characteristic curve. Primary parallel isolated boost converter (PPIBC) is a boost derived topology for low voltage high current applications reaching an efficiency figure up to 98.2 %. This paper proposes a new operation mode for extending the input and output voltage range in PPIBC. The proposed solution does not modify PPIBC power stage; the converter gain is modified by short-circuiting one of the parallel connected primary windings in the topology. The change in operation mode divides by two the converter input-to-output voltage gain. This allows covering the conditions when the fuel cell stack operates in the activation region (maximum output voltage) and increases the degrees of freedom for converter optimization. The transition between operating modes is studied because represents a change in the converter steadystate conditions. A solution is proposed based on precalculation of the duty cycle prior to the transition.

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KW - Battery

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M3 - Journal article

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