Fuel cell electric vehicle-to-grid

Experimental feasibility and operational performance as balancing power plant

Journal Article (2018)
Author(s)

VDWM Oldenbroek (TU Delft - Energy Technology)

V.C.S. Hamoen (Student TU Delft)

S. Alva (Student TU Delft)

Carla B. Robledo (TU Delft - Energy Technology)

L.A. Verhoef (TU Delft - GreenTU)

Ad J. M. Van Wijk (TU Delft - Energy Technology)

Research Group
Energy Technology
Copyright
© 2018 V.D.W.M. Oldenbroek, V.C.S. Hamoen, S. Alva, C.B. Robledo, L.A. Verhoef, A.J.M. van Wijk
DOI related publication
https://doi.org/10.1002/fuce.201700192
More Info
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Publication Year
2018
Language
English
Copyright
© 2018 V.D.W.M. Oldenbroek, V.C.S. Hamoen, S. Alva, C.B. Robledo, L.A. Verhoef, A.J.M. van Wijk
Research Group
Energy Technology
Issue number
5
Volume number
18
Pages (from-to)
649-662
Reuse Rights

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Abstract

The world's future energy supply will include intermittent renewable sources, such as solar and wind power. To guarantee reliability of supply, fast-reacting, dispatchable and renewable back-up power plants are required. One promising alternative is parked and grid-connected hydrogen-powered fuel cell electric vehicles (FCEVs) in "Vehicle-to-Grid" systems. We modified a commercial FCEV and installed an external 9.5 kW three-phase alternating current (AC) grid connection. Our experimental verification of this set-up shows that FCEVs can be used for mobility as well as generating power when parked. Our experimental results demonstrate that present-day grid-connected FCEVs can respond to high load gradients in the range of -760 % s-1 to + 730 % s-1, due to the parallel connection of the high voltage battery and the fuel cell stack. Virtual power plants composed of multiple grid-connected FCEVs could perform higher power gradients than existing fast-reacting thermal power plants with typical power gradients of 1.67 % s-1. Hydrogen consumption in 9.5 kW AC grid-connected mode was 0.55 kg h-1, resulting in a Tank-To-Grid-AC efficiency of 43% on a higher heating value basis (51 % on a lower heating value basis). Direct current to alternating current efficiency was 95 %.

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