2019
DOI: 10.1109/tpel.2019.2899150
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Design and Modeling of an Equalizer for Fuel Cell Energy Management Systems

Abstract: During the lifespan of a Polymer Electrolyte Membrane Fuel Cell (PEMFC) system, some heterogeneities between the cells constituting the stack can appear. The voltage of one particular cell in a stack may decrease because of specific aging or local malfunctioning such as drying. As a result, more heat is generated in this cell leading to an increase in its temperature and thus an additional voltage loss. This snowball effect can result in the failure of the cell. Therefore, the lifetime of a PEMFC stack can be … Show more

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Cited by 32 publications
(12 citation statements)
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“…39 Wettability, wall roughness, and interaction with GDL affect this flow. Considering this complexity and intending to develop a model that can be implemented in real-time, 40 the orientation is toward developing a porous media type model which is characterized by intrinsic permeability and relative permeability of the gas and liquid water. 41 The oxygen and water vapor concentrations used as boundary conditions for the model in the perpendicular direction to the MEA are chosen equal to the mean inlet/outlet values.…”
Section: Model Of a Cell In Its Stack Environmentmentioning
confidence: 99%
“…39 Wettability, wall roughness, and interaction with GDL affect this flow. Considering this complexity and intending to develop a model that can be implemented in real-time, 40 the orientation is toward developing a porous media type model which is characterized by intrinsic permeability and relative permeability of the gas and liquid water. 41 The oxygen and water vapor concentrations used as boundary conditions for the model in the perpendicular direction to the MEA are chosen equal to the mean inlet/outlet values.…”
Section: Model Of a Cell In Its Stack Environmentmentioning
confidence: 99%
“…The system uses N PEMFC stacks, each PEMFC stack is equipped with an independent DC-DC boost converter, multiple boost converters are connected in the form of inputs in parallel outputs in series, and, ultimately, the output capacitors of all converters are presented in series connected to the DC bus. This hybrid power-conversion architecture uses an equalizer to achieve the controllability of the boost converters [18]. v FC is the output voltage of each fuel cell stack.…”
Section: Introductionmentioning
confidence: 99%
“…The most preferred FC in an application is polymer electrolyte membrane FC (PEMFC) with a more compact structure and low-temperature values. A single cell in an FC module of this type typically has a voltage of 0.6 V. Therefore, in FC sources, modules are formed by serial/parallel connection of more than one cell and thus the desired DC voltage amplitude can be obtained [5][6].…”
Section: Introductionmentioning
confidence: 99%