Modeling and experimental parameterization of an electrically controllable PEM fuel cell
Publication date
2021-08-13
Document type
Forschungsartikel
Organisational unit
ISSN
Project
StBZuEL
Series or journal
International Journal of Hydrogen Energy
Periodical volume
46
Periodical issue
56
First page
28734
Last page
28747
Peer-reviewed
✅
Part of the university bibliography
✅
DDC Class
620 Ingenieurwissenschaften
Keyword
Electrically controllable membrane electrode assembly
Fuel cell modeling
Electrical equivalent circuit
Electric field modifier
Abstract
Optimized integration of fuel cells into grids or on-board power supplies is necessary to facilitate replacement of conventional energy producers by a reliable and plannable power generation technology. Due to the interdependency between fuel cell current and voltage, integration of fuel cells requires a power conditioning system, which increases integration weight and cost. For this reason, integration of electric field modifier electrodes into the setup of proton exchange membrane fuel cells is a new approach to control the output voltage in order to minimize the subsequent power conditioning system. This approach considers the physics of proton transport through the electrolyte membrane and could offer a lever to control the ohmic resistance. In this paper, a fuel cell model is implemented in MATLAB and extended by electric field modifier electrodes, allowing control of the ohmic resistance through an externally applied voltage. The concept of boosting and attenuating fuel cell voltage is presented along with different setups to enable this behavior. Furthermore, an electrical equivalent circuit for electrically controllable fuel cells is developed and implemented in MATLAB/Simulink. A method to parameterize the developed MATLAB and Simulink models by first experimental results is presented.
Version
Published version
Access right on openHSU
Metadata only access