Title :
PEMFC system efficiency optimisation through model based control strategies
Author :
Grasser, Felix ; Rufer, Alfred C.
Author_Institution :
Laboratoire d´´Electronique Industrielle, Ecole Polytech. Fed. de Lausanne
Abstract :
When running a fuel cell system in load following mode, several operating points (i.e. a combination of gas flow rates, pressures, humidities, temperatures and current density) can provide the required net power. Typically, only one of those operating points is exploited in traditional fuel cell system control. This paper introduces a model-based approach to determine and optimise overall fuel cell system efficiency by choosing an appropriate operating point for a given required net system power. This optimum steady-state operating point can be communicated to the control system as a set point value
Keywords :
current density; fuel cell power plants; power generation control; proton exchange membrane fuel cells; PEMFC system efficiency optimisation; current density; fuel cell system control; model based control strategies; net system power; set point value; steady-state operating point; Cooling; Electrical equipment industry; Fluid flow; Fuel cells; Gas industry; Humidity; Hydrogen; Industrial control; Power system modeling; Temperature control;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2006. VPPC '06. IEEE
Conference_Location :
Windsor
Print_ISBN :
1-4244-0158-5
Electronic_ISBN :
1-4244-0159-3
DOI :
10.1109/VPPC.2006.364325
