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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/22879

Title: Comparison of fuel consumption and fuel cell degradation using an optimised controller
Authors: Fletcher, Thomas P.
Thring, R.H.
Watkinson, Martin
Staffell, Iain
Issue Date: 2016
Publisher: © The Electrochemical Society
Citation: FLETCHER, T. ...et al., 2016. Comparison of fuel consumption and fuel cell degradation using an optimised controller. ECS Transactions, 71(1), pp. 85-97.
Abstract: The Energy Management Strategy (EMS) of any hybrid vehicle is responsible for determining the operating state of many components on board the vehicle and therefore has significant effect on the fuel economy, emissions, ageing of components and vehicle drive-ability. It is generally accepted that Stochastic Dynamic Programming (SDP) can be used to produce a near-optimal control strategy provided that an accurate Markov model of the drive-cycle is available, and the cost function used for the optimisation is representative of the true running cost of the vehicle. The vast majority of research in this field focussing solely on the optimisation of the fuel economy, however for a fuel cell hybrid vehicle, the degradation of the fuel cell contributes significantly to the overall running cost of the vehicle, and should therefore be included in calculation of the running cost during the optimisation process. In this work, an optimised controller using SDP is developed for a campus passenger vehicle in order to minimise the lifetime cost of both fuel consumption and fuel cell degradation. The vehicle is then simulated over a number of typical journeys obtained from data logging during its use on the University of Birmingham's campus. It is shown that the expected lifetime cost due to fuel cell degradation massively outweighs the cost of the fuel consumed.
Description: This paper was presented at the Fuel Cell Seminar, Los Angeles, November 11-16, 2015. This paper was accepted for publication in the journal ECS Transactions and the definitive published version is available at http://dx.doi.org/10.1149/07101.0085ecst
Sponsor: The authors would like to thank the Engineering and Physical Sciences Research Council (EPSRC) for providing funding for this for this project through the DTC in Hydrogen, Fuel Cells and Their Applications.
Version: Accepted for publication
DOI: 10.1149/07101.0085ecst
URI: https://dspace.lboro.ac.uk/2134/22879
Publisher Link: http://dx.doi.org/10.1149/07101.0085ecst
ISSN: 1938-5862
Appears in Collections:Conference Papers and Presentations (Aeronautical and Automotive Engineering)

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