Abstract
PEM fuel cell drivetrains in heavy duty applications are mostly implemented using multiple fuel cell systems and as battery hybrid systems. The complex architecture of those hybrid system results in various degrees of freedom in the operating strategy. Those have a major influence on aspects such as dynamics, efficiency and lifetime of the entire system. In order to be able to analyze and evaluate the capability of an efficiency optimized operating strategies, the ZBT fuel cell model is integrated into a fuel cell system and a full vehicle simulation. The dimensioning and also the load profiles are inspired by the Hyundai XCIENT Fuel Cell with 20 t total permitted mass. Starting from a rudimentary and purely functional operating strategy, an efficiency optimized operating strategy is presented. A mere optimization of the fuel cell system operation is not sufficient, since the losses in the battery system must also be considered. The numerous effects of the operating strategy are described.
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Acknowledgements
The research project was carried out in the framework of the industrial collective research program (IGF no. 61 EWN). It was supported by the Federal Ministry for Economic Affairs and Climate Action (BMWK) through the AiF (German Federation of Industrial Research Associations eV) based on a decision taken by the German Bundestag.
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© 2023 Der/die Autor(en), exklusiv lizenziert an Springer Fachmedien Wiesbaden GmbH, ein Teil von Springer Nature
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Gößling, S., Bahr, M., Smyrek, F. (2023). Hybrid PEM Fuel Cell Systems. In: Heintzel, A. (eds) Heavy-Duty-, On- und Off-Highway-Motoren 2022. HDENGI 2022. Proceedings. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-41477-1_13
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DOI: https://doi.org/10.1007/978-3-658-41477-1_13
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