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Fuel Cell Hybrid Vehicle Modeling in Modelica

Sigfridsson, Sara (2018)
Department of Automatic Control
Abstract
Exchanging classical combustion motors in cars for more environmentally friendly solutions is a hot topic worldwide and this has currently been taken to a new dimension by the release of the first hydrogen driven vehicles on the world market.
The objective of this master thesis has been to develop a Modelica model of an automotive hydrogen fuel cell system, which should be integrated in an already existing vehicle system template and be simulated in various drive cycle tests. The work was performed in the Modelica platform Dymola by means of its Fuel Cell and Vehicle Dynamics Libraries.
The model was constructed and parameterized according to available information of the commercial hydrogen driven car, Toyota Mirai.
The purpose of... (More)
Exchanging classical combustion motors in cars for more environmentally friendly solutions is a hot topic worldwide and this has currently been taken to a new dimension by the release of the first hydrogen driven vehicles on the world market.
The objective of this master thesis has been to develop a Modelica model of an automotive hydrogen fuel cell system, which should be integrated in an already existing vehicle system template and be simulated in various drive cycle tests. The work was performed in the Modelica platform Dymola by means of its Fuel Cell and Vehicle Dynamics Libraries.
The model was constructed and parameterized according to available information of the commercial hydrogen driven car, Toyota Mirai.
The purpose of the developed system model was to monitor overall performance and efficiency during various dynamic drive cycles and operating conditions. The model should reproduce realistic output signals during simulation. It should also capture the effects of changes of a wide range of operation or boundary conditions, such as internal and external temperatures, operation pressure and variations in humidity in the stack system.
The developed stack system model contained controlled systems for air and fuel supply, an external humidifier and an advanced cooling system. The power consumption of the auxiliary device and the fuel cell and stack system efficiency could also be monitored. The power train system consisted of a rechargeable battery, a DC motor, two DC/DC converters and software to direct the current withdrawn from the stack according to the motor demands. The final fuel cell vehicle system model was validated and simulated in a set of established dynamic drive cycles.
The model was mimicking the Mirai well, although certain assumptions had been performed due to limited system information or reasonable simplifications. (Less)
Please use this url to cite or link to this publication:
author
Sigfridsson, Sara
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
report number
TFRT-6052
ISSN
0280-5316
language
English
id
8940676
date added to LUP
2018-06-29 12:23:28
date last changed
2018-06-29 12:23:28
@misc{8940676,
  abstract     = {{Exchanging classical combustion motors in cars for more environmentally friendly solutions is a hot topic worldwide and this has currently been taken to a new dimension by the release of the first hydrogen driven vehicles on the world market.
 The objective of this master thesis has been to develop a Modelica model of an automotive hydrogen fuel cell system, which should be integrated in an already existing vehicle system template and be simulated in various drive cycle tests. The work was performed in the Modelica platform Dymola by means of its Fuel Cell and Vehicle Dynamics Libraries.
 The model was constructed and parameterized according to available information of the commercial hydrogen driven car, Toyota Mirai. 
 The purpose of the developed system model was to monitor overall performance and efficiency during various dynamic drive cycles and operating conditions. The model should reproduce realistic output signals during simulation. It should also capture the effects of changes of a wide range of operation or boundary conditions, such as internal and external temperatures, operation pressure and variations in humidity in the stack system.
 The developed stack system model contained controlled systems for air and fuel supply, an external humidifier and an advanced cooling system. The power consumption of the auxiliary device and the fuel cell and stack system efficiency could also be monitored. The power train system consisted of a rechargeable battery, a DC motor, two DC/DC converters and software to direct the current withdrawn from the stack according to the motor demands. The final fuel cell vehicle system model was validated and simulated in a set of established dynamic drive cycles.
 The model was mimicking the Mirai well, although certain assumptions had been performed due to limited system information or reasonable simplifications.}},
  author       = {{Sigfridsson, Sara}},
  issn         = {{0280-5316}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Fuel Cell Hybrid Vehicle Modeling in Modelica}},
  year         = {{2018}},
}