Imperial College London
Alternate

Professor Nigel Brandon OBE FREng FRS

Faculty of Engineering

Dean of the Faculty of Engineering
 
 
 
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Contact

 

+44 (0)20 7594 8600n.brandon Website

 
 
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Location

 

2.06Faculty BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wu:2013:10.1049/cp.2013.1900,
author = {Wu, B and Yufit, V and Campbell, J and Offer, GJ and Martinez-Botas, RF and Brandon, NP},
doi = {10.1049/cp.2013.1900},
journal = {IET Conference Publications},
title = {Simulated and experimental validation of a fuel cell-supercapacitor passive hybrid system for electric vehicles},
url = {http://dx.doi.org/10.1049/cp.2013.1900},
volume = {2013},
year = {2013}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The concept of a fuel cell-supercapacitor hybrid system involves the direct coupling of the two devices to achieve the same benefits of hybridisation but without the need for costly DCDC converters. Using an experimentally validated steady state fuel cell model and a transmission line based supercapacitor model, it has been shown that the passive hybridisation allows for efficiency gains of approximately 16% compared to a pure fuel cell system. Under load, the supercapacitors meets the peak power requirement due to their lower impedance giving the FC time to ramp up. Under no load conditions, the fuel cell gradually charges the supercapacitors back to the steady state thermodynamic equilibrium potential. A fast fourier transform analysis of the respective loads under an automotive drive cycle showed that the supercapacitors act as a low pass filter, reducing the magnitude of load oscillations from the fuel cell. This therefore addresses two of the main modes of fuel cell degradation in automotive applications: rapid power cycling and no load idling.
AU  - Wu,B
AU  - Yufit,V
AU  - Campbell,J
AU  - Offer,GJ
AU  - Martinez-Botas,RF
AU  - Brandon,NP
DO  - 10.1049/cp.2013.1900
PY  - 2013///
TI  - Simulated and experimental validation of a fuel cell-supercapacitor passive hybrid system for electric vehicles
T2  - IET Conference Publications
UR  - http://dx.doi.org/10.1049/cp.2013.1900
VL  - 2013
ER  -
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