TY - JOUR
T1 - Fast online diagnosis for solid oxide fuel cells
T2 - Optimisation of total harmonic distortion tool for real-system application and reactants starvation identification
AU - Moussaoui, Hamza
AU - Hammerschmid, Gerald
AU - Van Herle, Jan
AU - Subotić, Vanja
N1 - Funding Information:
The research leading of these results has received funding from the Fuel Cells and Hydrogen Joint Undertaking under grant agreement n° 875047 (RUBY project), n° 101007175 (REACTT project), n° 875148 (SWITCH project), and n° 825027 (AdAstra project). This Joint Undertaking receives support from the European Union’s Horizon 2020 research and innovation programme, Hydrogen Europe, and Hydrogen Europe research . The authors gratefully acknowledge Dr. Guillaume Jeanmonod from HydroQuebec Research center, and Suhas Nuggehalli Sampathkumar from EPFL for the precious support and discussions.
Funding Information:
The research leading of these results has received funding from the Fuel Cells and Hydrogen Joint Undertaking under grant agreement n° 875047 (RUBY project), n° 101007175 (REACTT project), n° 875148 (SWITCH project), and n° 825027 (AdAstra project). This Joint Undertaking receives support from the European Union's Horizon 2020 research and innovation programme, Hydrogen Europe, and Hydrogen Europe research. The authors gratefully acknowledge Dr. Guillaume Jeanmonod from HydroQuebec Research center, and Suhas Nuggehalli Sampathkumar from EPFL for the precious support and discussions.
Publisher Copyright:
© 2022 The Author(s)
PY - 2023/2/1
Y1 - 2023/2/1
N2 - This study investigates the potential application of total harmonic distortion (THD), as a fast online monitoring tool, to identify the early signs of failure modes in solid oxide fuel cells (SOFC). Indeed, the timely detection and identification of faults is crucial for applying mitigation strategies to avoid irreversible damage and increase the system lifetime. Two of the most common faulty conditions are considered in this work, namely fuel and air starvation. This experimental work aims at progressively triggering these errors in a controlled manner, by following different realistic scenarios, and recording THD values on a frequent basis. Several well-established laboratory monitoring tools, like electrochemical impedance spectroscopy (EIS), complemented by the distribution of relaxation times (DRT) are used to analyse and support the interpretation of the THD measurements. A sensitivity analysis on the THD parameters, namely the signal amplitude and the number of harmonics, is carried out to identify the optimal combination of parameters and achieve the best faults detectability. Finally, the impact of the fuel flow direction and the operating temperature are examined. The results of this work are summarised as practical guidelines to better employ the THD technique to identify the early warning signs of reactants’ starvation.
AB - This study investigates the potential application of total harmonic distortion (THD), as a fast online monitoring tool, to identify the early signs of failure modes in solid oxide fuel cells (SOFC). Indeed, the timely detection and identification of faults is crucial for applying mitigation strategies to avoid irreversible damage and increase the system lifetime. Two of the most common faulty conditions are considered in this work, namely fuel and air starvation. This experimental work aims at progressively triggering these errors in a controlled manner, by following different realistic scenarios, and recording THD values on a frequent basis. Several well-established laboratory monitoring tools, like electrochemical impedance spectroscopy (EIS), complemented by the distribution of relaxation times (DRT) are used to analyse and support the interpretation of the THD measurements. A sensitivity analysis on the THD parameters, namely the signal amplitude and the number of harmonics, is carried out to identify the optimal combination of parameters and achieve the best faults detectability. Finally, the impact of the fuel flow direction and the operating temperature are examined. The results of this work are summarised as practical guidelines to better employ the THD technique to identify the early warning signs of reactants’ starvation.
KW - Degradation
KW - Failure mode
KW - Online state-of-health (SoH) monitoring
KW - Reactant starvation
KW - Solid oxide fuel cell (SOFC)
KW - Total harmonic distortion (THD)
UR - http://www.scopus.com/inward/record.url?scp=85143523759&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2022.232352
DO - 10.1016/j.jpowsour.2022.232352
M3 - Article
AN - SCOPUS:85143523759
SN - 0378-7753
VL - 556
JO - Journal of Power Sources
JF - Journal of Power Sources
M1 - 232352
ER -