Model-Based Efficiency Improvement of Automotive Fuel Cell Systems

Autor: Ralf Wascheck, Katharina Schütte, Matthias Rothschuh, Sebastian Bilz
Rok vydání: 2016
Předmět:
Zdroj: Simulation and Testing for Vehicle Technology ISBN: 9783319323442
DOI: 10.1007/978-3-319-32345-9_14
Popis: Fuel cells are seen as a promising potential technology for future automotive drive systems. The efficiency of fuel cells, their costs and dynamic behavior depend essentially on the surrounding system components. Different system topologies are possible for achieving an optimum interaction between system components and fuel cell stack and will be investigated as an ongoing major topic in the years to come. Development and operation of a fuel cell system for mass production is a challenge containing numerous trade-offs. One goal is an optimized operation of the fuel cell stack with the aiming on a maximum efficiency during the entire lifetime of the fuel cell system. Model-based approaches are used in early development stages to develop and verify the fuel cell system components. The investigations presented in this paper show detailed results for different fuel cell system topologies together with the interaction between system components and stack. The trade-off between optimum fuel cell stack supply and dynamic demands of the vehicle is also considered. The simulation framework developed is used for rapid and targeted initial calibration of new systems and for a detailed comparison of different topologies. It serves as a tool for ascertaining the optimum operating parameters for the fuel cell stack. Results provide a basis for demands, selection and positioning of different components in a fuel cell system.
Databáze: OpenAIRE