An EIS alternative for impedance measurement of a high temperature PEM fuel cell stack based on current pulse injection

Christian Jeppesen*, Samuel Simon Araya, Simon Lennart Sahlin, Søren Juhl Andreasen, Søren Knudsen Kær

*Corresponding author

Research output: Contribution to journalJournal articleResearchpeer-review

8 Citations (Scopus)
196 Downloads (Pure)

Abstract

In this paper a method for estimating the fuel cell impedance is presented, namely the current pulse injection (CPI) method, which is well suited for online implementation. This method estimates the fuel cell impedance and unlike electrochemical impedance spectroscopy (EIS), it is simple to implement at a low cost. This makes it appealing as a characterization method for on-line diagnostic algorithms. In this work a parameter estimation method for estimation of equivalent electrical circuit (EEC) parameters, which is suited for on-line use is proposed. Tests on a 10 cell high temperature PEM fuel cell show that the method yields consistent results in estimating EEC parameters for different current pulse at different current loads, with a low variance. A comparison with EIS shows that despite its simplicity the response of CPI can reproduce well the impedance response of the high and intermediate frequencies.
Original languageEnglish
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number24
Pages (from-to)15851-15860
Number of pages10
ISSN0360-3199
DOIs
Publication statusPublished - Jun 2017

Fingerprint

impedance measurement
Electrochemical impedance spectroscopy
fuel cells
Fuel cells
impedance
injection
pulses
spectroscopy
Networks (circuits)
estimating
Parameter estimation
Temperature
intermediate frequencies
Costs
estimates
cells

Keywords

  • Characterization
  • CPI
  • Current pulse injection
  • EIS
  • Fuel cell
  • PEM

Cite this

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title = "An EIS alternative for impedance measurement of a high temperature PEM fuel cell stack based on current pulse injection",
abstract = "In this paper a method for estimating the fuel cell impedance is presented, namely the current pulse injection (CPI) method, which is well suited for online implementation. This method estimates the fuel cell impedance and unlike electrochemical impedance spectroscopy (EIS), it is simple to implement at a low cost. This makes it appealing as a characterization method for on-line diagnostic algorithms. In this work a parameter estimation method for estimation of equivalent electrical circuit (EEC) parameters, which is suited for on-line use is proposed. Tests on a 10 cell high temperature PEM fuel cell show that the method yields consistent results in estimating EEC parameters for different current pulse at different current loads, with a low variance. A comparison with EIS shows that despite its simplicity the response of CPI can reproduce well the impedance response of the high and intermediate frequencies.",
keywords = "Characterization, CPI, Current pulse injection, EIS, Fuel cell, PEM",
author = "Christian Jeppesen and Araya, {Samuel Simon} and Sahlin, {Simon Lennart} and Andreasen, {S{\o}ren Juhl} and K{\ae}r, {S{\o}ren Knudsen}",
year = "2017",
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language = "English",
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An EIS alternative for impedance measurement of a high temperature PEM fuel cell stack based on current pulse injection. / Jeppesen, Christian; Araya, Samuel Simon; Sahlin, Simon Lennart; Andreasen, Søren Juhl; Kær, Søren Knudsen.

In: International Journal of Hydrogen Energy, Vol. 42, No. 24, 06.2017, p. 15851-15860.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - An EIS alternative for impedance measurement of a high temperature PEM fuel cell stack based on current pulse injection

AU - Jeppesen, Christian

AU - Araya, Samuel Simon

AU - Sahlin, Simon Lennart

AU - Andreasen, Søren Juhl

AU - Kær, Søren Knudsen

PY - 2017/6

Y1 - 2017/6

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AB - In this paper a method for estimating the fuel cell impedance is presented, namely the current pulse injection (CPI) method, which is well suited for online implementation. This method estimates the fuel cell impedance and unlike electrochemical impedance spectroscopy (EIS), it is simple to implement at a low cost. This makes it appealing as a characterization method for on-line diagnostic algorithms. In this work a parameter estimation method for estimation of equivalent electrical circuit (EEC) parameters, which is suited for on-line use is proposed. Tests on a 10 cell high temperature PEM fuel cell show that the method yields consistent results in estimating EEC parameters for different current pulse at different current loads, with a low variance. A comparison with EIS shows that despite its simplicity the response of CPI can reproduce well the impedance response of the high and intermediate frequencies.

KW - Characterization

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KW - Current pulse injection

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