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An improved energy management strategy for a hybrid fuel cell/battery passenger vessel

An improved energy management strategy for a hybrid fuel cell/battery passenger vessel
An improved energy management strategy for a hybrid fuel cell/battery passenger vessel
The combination of a fuel cell and an energy storage system for the reduction of fuel consumption and improving the dynamics of hybrid power systems has successfully been used in transportation applications. In order to realise the benefits of hybrid fuel cell power systems, an energy management strategy is essential for distributing the required power properly between the fuel cell and the energy storage system. For a hybrid fuel cell/battery passenger vessel, an improvement to the classical proportional-integral (PI) controller based energy management strategy is presented. This takes fuel cell efficiency into consideration as an input to maintain higher efficiency of fuel cell and reduce stresses on it and hence reduce its fuel consumption.

A 25.5 m long passenger vessel is used and its propulsion system is modelled in MATLAB/Simulink environment using the SimPowerSystems toolbox. The performance of the proposed PI energy management strategy is compared to original PI, equivalent fuel consumption minimization strategy (ECMS), and state-based energy management strategies in terms of consumed energy, battery state of charge, fuel cell efficiency, hydrogen consumption, and the stresses seen by each power source of the hybrid system taking into consideration a daily operation of 8 hours. Results indicate that a daily hydrogen saving of 3.5%, 1.7%, and 1.4% compared to the ECMS, state-based, and the original PI strategies respectively can be achieved by adopting the proposed PI strategy in addition to lower stress on the fuel cell.
Energy management strategy, Hybrid power system, Fuel cell, PEMFC, PI controller
0360-3199
22453-22464
Bassam, Ameen M.
d9131851-3fa2-441f-93a7-996fde2bcf33
Phillips, Alexander B.
f565b1da-6881-4e2a-8729-c082b869028f
Turnock, Stephen R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Wilson, Philip A.
8307fa11-5d5e-47f6-9961-9d43767afa00
Bassam, Ameen M.
d9131851-3fa2-441f-93a7-996fde2bcf33
Phillips, Alexander B.
f565b1da-6881-4e2a-8729-c082b869028f
Turnock, Stephen R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Wilson, Philip A.
8307fa11-5d5e-47f6-9961-9d43767afa00

Bassam, Ameen M., Phillips, Alexander B., Turnock, Stephen R. and Wilson, Philip A. (2016) An improved energy management strategy for a hybrid fuel cell/battery passenger vessel. International Journal of Hydrogen Energy, 41 (47), 22453-22464. (doi:10.1016/j.ijhydene.2016.08.049).

Record type: Article

Abstract

The combination of a fuel cell and an energy storage system for the reduction of fuel consumption and improving the dynamics of hybrid power systems has successfully been used in transportation applications. In order to realise the benefits of hybrid fuel cell power systems, an energy management strategy is essential for distributing the required power properly between the fuel cell and the energy storage system. For a hybrid fuel cell/battery passenger vessel, an improvement to the classical proportional-integral (PI) controller based energy management strategy is presented. This takes fuel cell efficiency into consideration as an input to maintain higher efficiency of fuel cell and reduce stresses on it and hence reduce its fuel consumption.

A 25.5 m long passenger vessel is used and its propulsion system is modelled in MATLAB/Simulink environment using the SimPowerSystems toolbox. The performance of the proposed PI energy management strategy is compared to original PI, equivalent fuel consumption minimization strategy (ECMS), and state-based energy management strategies in terms of consumed energy, battery state of charge, fuel cell efficiency, hydrogen consumption, and the stresses seen by each power source of the hybrid system taking into consideration a daily operation of 8 hours. Results indicate that a daily hydrogen saving of 3.5%, 1.7%, and 1.4% compared to the ECMS, state-based, and the original PI strategies respectively can be achieved by adopting the proposed PI strategy in addition to lower stress on the fuel cell.

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Accepted/In Press date: 8 August 2016
e-pub ahead of print date: 28 August 2016
Published date: 21 December 2016
Keywords: Energy management strategy, Hybrid power system, Fuel cell, PEMFC, PI controller
Organisations: Ocean Technology and Engineering, Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 400673
URI: http://eprints.soton.ac.uk/id/eprint/400673
ISSN: 0360-3199
PURE UUID: c055fcf7-1f19-41b9-967f-19b13b9d80e2
ORCID for Ameen M. Bassam: ORCID iD orcid.org/0000-0001-7366-7293
ORCID for Alexander B. Phillips: ORCID iD orcid.org/0000-0003-3234-8506
ORCID for Stephen R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400
ORCID for Philip A. Wilson: ORCID iD orcid.org/0000-0002-6939-682X

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Date deposited: 22 Sep 2016 08:59
Last modified: 17 Dec 2019 06:38

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Contributors

Author: Ameen M. Bassam ORCID iD
Author: Alexander B. Phillips ORCID iD

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