Exploració per tema "PEM fuel cells"
Ara es mostren els items 1-20 de 30
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A gain-scheduled LPV control for oxygen stoichiometry regulation in PEM fuel cell systems
(2014)
Article
Accés obertThe article addresses the LPV control of a Polymer Electrolyte Membrane Fuel Cell (PEMFC). In order to optimize efficiency, PEMFCs require reliable control systems ensuring stability and performance, as well as robustness ... -
Adaptive online parameter estimation algorithm of PEM fuel cells
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Text en actes de congrés
Accés obertSince most of fuel cell models are generally nonlinearly parameterized functions, existing modeling techniques rely on the optimization approaches and impose heavy computational costs. In this paper, an adaptive online ... -
Analysis of proton exchange membrane fuel cell (PEMFC) design parameters by simulation using OpenFCST
(Universitat Politècnica de Catalunya, 2018)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: University of AlbertaImproving proton exchange membrane fuel cells technology, together with hy- drogen production and storage, can make these devices an important element in the energy transition puzzle. A multi-dimensional, non-isothermal, ... -
Chattering free sliding mode observer estimation of liquid water fraction in proton exchange membrane fuel cells
(2020-12)
Article
Accés obertThe aim of this work is to deploy and experimentally validate a model-based strategy to estimate unmeasurable variables in a proton exchange membrane (PEM) fuel cell. First, a nonlinear PEM fuel cell dynamical model is ... -
Control de temperatura en pilas de combustible tipo PEM de cátodo abierto
(2014)
Text en actes de congrés
Accés restringit per política de l'editorialEn este trabajo se analiza el modelo de una pila de combustible tipo PEM de cátodo abierto. Se caracterizan sus puntos de equilibrio. Se analiza el plano de fase del modelo alrededor de diferentes puntos de operación y se ... -
Distributed high temperature PEM fuel cell modelling.
(2019)
Text en actes de congrés
Accés restringit per política de l'editorial -
Energy management strategies for fuel cell-hybrid vehicles
(2008)
Text en actes de congrés
Accés obertThis paper presents an analysis and a comparative study between three new proposed Energy Management Strategies oriented to Fuel Cell-Hybrid Vehicles (FCHVs). The vehicle in study is powered by a fuel cell and a supercapacitor ... -
Experimental analysis of a degraded open-cathode PEM fuel cell stack
(2013)
Text en actes de congrés
Accés obertThe well-known challenges to be overcome in PEM fuel cell research are their relatively low durability and high costs for the platinum catalysts. Thus, this work focuses on factors that impact durability and the links to ... -
Experimental analysis of a degraded open-cathode PEM fuel cell stack
(2014)
Article
Accés obertThe well-known challenges to overcome in PEM fuel cell research are their relatively low durability and the high costs for the platinum catalysts. This work focuses on degradation mechanisms that are present in open-cathode ... -
Experimental decoupling of single cell polarization losses
(2015)
Text en actes de congrés
Accés obertThe decoupling of the current sweep with the Ohmic resistance is a very powerful tool to determine the magnitude of the voltage losses inside of a fuel cell. In a time frame of seconds, the fuel cell can be diagnosed and ... -
Fault detection and isolation of a real PEM fuel cell using interval LPV observers
(IFAC, 2012)
Text en actes de congrés
Accés restringit per decisió de l'autorThe purpose of this paper is to design a Fault Detection and Isolation (FDI) system based on interval LPV observers with application to a real fuel cell. The interval LPV observer is used to generate an adaptive threshold ... -
Fault tolerant control of a PEM fuel cell using qLPV virtual actuators
(International Federation of Automatic Control (IFAC), 2015)
Text en actes de congrés
Accés obertThis paper proposes a fault tolerant control (FTC) strategy based on the use of quasi-linear parameter varying (qLPV) virtual actuators approach for proton exchange membrane (PEM) fuel cells. The overall solution relies ... -
Fault-tolerant unfalsified control for PEM fuel cell systems
(2015)
Article
Accés obertThe article addresses the implementation of a data-driven control strategy in a real test bench based on proton exchange membrane fuel cells (PEMFCs). The proposed control scheme is based on Unfalsified Control (UC), which ... -
High temperature proton exchange membrane fuel cells control for combined heat and power applications
(Universitat Politècnica de Catalunya, 2019-07-05)
Projecte Final de Màster Oficial
Accés obertOver the last few years, the research of new energy sources as a substitute for the current de-pletable ones has been increasing. One of these possible sources is hydrogen, one of the mostcommon elements in the planet. By ... -
LPV model-based fault diagnosis using relative fault sensitivity signature approach in a PEM fuel cell
(IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, a model-based fault diagnosis methodology for PEM fuel cell systems is presented. The methodology is based on computing residuals using a LPV observer. Fault detection is based on using adaptive threshold ... -
LPV Observer design for PEM fuel cell system: Application to fault detection
(2011-02-01)
Article
Accés restringit per política de l'editorialIn this paper, the modelling of an energy generation system based on polymer electrolyte membrane fuel cell (PEMFC) system through a parameter varying approach (LPV model), that takes in to account model parameter variation ... -
Modeling and control of PEM fuel cells
(Universitat Politècnica de Catalunya, 2017-09-22)
Tesi
Accés obertIn recent years, the PEM fuel cell technology has been incorporated to the R&D plans of many key companies in the automotive, stationary power and portable electronics sectors. However, despite current developments, the ... -
Nonlinear distributed parameter observer design for fuel cell systems
(2015-09-14)
Article
Accés obertThis paper presents the development of a nonlinear state observer to estimate the different gas species concentration profiles in a Proton Exchange Membrane Fuel Cell energy system. The selection of the estimated states ... -
Observer for State and Parameter Estimation in PEM Fuel Cells
(Universitat Politècnica de Catalunya, 2020-07-31)
Projecte Final de Màster Oficial
Accés obert -
On the implementation of gain-scheduled LPV control for oxygen stoichiometry regulation in PEM fuel cells
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés obertThe article addresses the LPV control of a Polymer Electrolyte Membrane Fuel Cell (PEMFC) facing oxygen stoichiometry regulation. In order to optimize efficiency, PEMFCs require reliable control systems ensuring stability ...
