Details
| Original language | English |
|---|---|
| Pages (from-to) | 15818-15827 |
| Number of pages | 10 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 42 |
| Issue number | 24 |
| Early online date | 7 Jun 2017 |
| Publication status | Published - 15 Jun 2017 |
Abstract
In this contribution the reversal line, a new voltage–current (U–i) characteristic curve, is proposed to analyze the transient behavior after an arbitrary load step. The response of a differential polymer electrolyte membrane (PEM) fuel cell to the changes in current, voltage, resistance and power is evaluated, and the existence of the curve is established. Furthermore, the influence of the starting point and the relative humidity is investigated. By using this approach, it is possible to predict the trajectory followed after any load step in the U–i plane and to anticipate infeasible load steps as well as the presence and magnitude of overshoots or undershoots in the cell response.
Keywords
- Dynamics, Load step, PEM fuel cell, Transient response
ASJC Scopus subject areas
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Energy(all)
- Fuel Technology
- Physics and Astronomy(all)
- Condensed Matter Physics
- Energy(all)
- Energy Engineering and Power Technology
Sustainable Development Goals
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In: International Journal of Hydrogen Energy, Vol. 42, No. 24, 15.06.2017, p. 15818-15827.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Understanding PEM fuel cell dynamics
T2 - The reversal curve
AU - Peña Arias, Ivonne Karina
AU - Trinke, Patrick
AU - Hanke-Rauschenbach, Richard
AU - Sundmacher, Kai
N1 - Funding information: The authors gratefully acknowledge the financial support from the German Federal Ministry of Education and Research (BMBF) under the project GECKO, Grant No. 03SF0454B.
PY - 2017/6/15
Y1 - 2017/6/15
N2 - In this contribution the reversal line, a new voltage–current (U–i) characteristic curve, is proposed to analyze the transient behavior after an arbitrary load step. The response of a differential polymer electrolyte membrane (PEM) fuel cell to the changes in current, voltage, resistance and power is evaluated, and the existence of the curve is established. Furthermore, the influence of the starting point and the relative humidity is investigated. By using this approach, it is possible to predict the trajectory followed after any load step in the U–i plane and to anticipate infeasible load steps as well as the presence and magnitude of overshoots or undershoots in the cell response.
AB - In this contribution the reversal line, a new voltage–current (U–i) characteristic curve, is proposed to analyze the transient behavior after an arbitrary load step. The response of a differential polymer electrolyte membrane (PEM) fuel cell to the changes in current, voltage, resistance and power is evaluated, and the existence of the curve is established. Furthermore, the influence of the starting point and the relative humidity is investigated. By using this approach, it is possible to predict the trajectory followed after any load step in the U–i plane and to anticipate infeasible load steps as well as the presence and magnitude of overshoots or undershoots in the cell response.
KW - Dynamics
KW - Load step
KW - PEM fuel cell
KW - Transient response
UR - http://www.scopus.com/inward/record.url?scp=85020231929&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2017.05.087
DO - 10.1016/j.ijhydene.2017.05.087
M3 - Article
AN - SCOPUS:85020231929
VL - 42
SP - 15818
EP - 15827
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 24
ER -