Electrical equivalent model of a proton exchange membrane fuel cell with experimental validation

2011 ◽  
Vol 36 (10) ◽  
pp. 2582-2588 ◽  
Author(s):  
M. Becherif ◽  
D. Hissel ◽  
S. Gaagat ◽  
M. Wack
Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1889
Author(s):  
Fatima Zahra Belhaj ◽  
Hassan El Fadil ◽  
Zakariae El Idrissi ◽  
Mohamed Koundi ◽  
Khawla Gaouzi

Based on full and rigorous study, this paper addresses the issue of ensuring a feasible association in practice between a Proton Exchange Membrane Fuel Cell (PEMFC) and DC-DC power converters including a buck and boost converter. This association is mathematically modeled, analyzed, and controlled by an optimal PID controller. Using absolute stability tools with a rigorous analytical approach that takes into consideration windup effects, in addition to the nonlinear behavior of the Proton Exchange Membrane Fuel Cell, sufficient conditions are provided to ensure that the closed-loop system is L2-stable. These conditions allow the optimal PID controller parameters to be chosen and ensure the closed-loop system stability, by tracking reference outputs, and an optimal performance against perturbations. Formal analysis, numerical simulations, and experimental validation were carried out to verify that the PID controller designed with an anti-windup action is robust and meets all of the pre-defined objectives. Moreover, this study demonstrates that the association between the PEMFC and the DC-DC converters is achieved if only certain conditions are met.


Author(s):  
Denise A. McKay ◽  
Anna G. Stefanopoulou ◽  
Jeffrey Cook

For temperature and humidity control of proton exchange membrane fuel cell (PEMFC) reactants, a membrane based external humidification system was designed and constructed. Here we develop and validate a physics based, low-order, control-oriented model of the external humidification system dynamics based on first principles. This model structure enables the application of feedback control for thermal and humidity management of the fuel cell reactants. The humidification strategy posed here deviates from standard internal humidifiers that are relatively compact and cheap but prohibit active humidity regulation and couple reactant humidity requirements to the PEMFC cooling demands. Additionally, in developing our model, we reduced the number of sensors required for feedback control by employing a dynamic physics based estimation of the air-vapor mixture relative humidity leaving the humidification system (supplied to the PEMFC) using temperature and pressure measurements. A simple and reproducible methodology is then employed for parameterizing the humidification system model using experimental data.


Sign in / Sign up

Export Citation Format

Share Document