Exploració per autor "Luna Pacho, Julio Alberto"
Ara es mostren els items 1-16 de 16
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Development of control systems and state observers for efficiency and durability improvement in PEM fuel cell based systems
Luna Pacho, Julio Alberto (Universitat Politècnica de Catalunya, 2017-02-27)
Tesi
Accés obertProton exchange membrane (PEM) fuel cells, which use hydrogen as fuel, provide high power densities while operating at lower temperatures, reducing the cost of materials and maintenance. PEM fuel cells are suitable for a ... -
Distributed parameter nonlinear state observer with unmatched disturbance estimation for PEMFC systems
Luna Pacho, Julio Alberto; Usai, Elio; Husar, Attila Peter; Serra, Maria (2015)
Text en actes de congrés
Accés obertIn this paper a nonlinear state observer based on a distributed parameter model is proposed for a proton exchange membrane fuel cell (PEMFC). The estimation technique is implemented using a model-based nonlinear observer ... -
Enhancing the efficiency and lifetime of a proton exchange membrane fuel cell using nonlinear model-predictive control with nonlinear observation
Luna Pacho, Julio Alberto; Usai, Elio; Husar, Attila Peter; Serra, Maria (Institute of Electrical and Electronics Engineers (IEEE), 2017-08-01)
Article
Accés obertThe aim of this research is to develop and test in a simulation environment an advanced model-based control solution for a proton exchange membrane fuel cell (PEMFC) system. A nonlinear model-predictive control (NMPC) ... -
Nonlinear distributed parameter observer design for fuel cell systems
Luna Pacho, Julio Alberto; Husar, Attila Peter; Serra, Maria (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 ... -
Nonlinear model predictive control methodology for efficiency and durability improvement in a fuel cell power system
Luna Pacho, Julio Alberto; Jemei, Samir; Yousfi-Steiner, Nadia; Husar, Attila Peter; Serra, Maria (2016)
Text en actes de congrés
Accés obertThe main contribution of this work is the improvement of the efficiency of a PEMFC power system while guaranteeing conditions that also improve its durability. Adopting the NMPC scheme with the distributed parameter model ... -
Nonlinear observation in fuel cell systems: a comparison between disturbance estimation and High-Order Sliding-Mode techniques
Luna Pacho, Julio Alberto; Usai, Elio; Husar, Attila Peter; Serra, Maria (2016-11-16)
Article
Accés obertThis paper compares two Nonlinear Distributed Parameter Observers (NDPO) for the observation of a Proton Exchange Membrane Fuel Cell (PEMFC). Both NDPOs are based on the discretisation of distributed parameters models and ... -
Nonlinear predictive control for durability enhancement and efficiency improvement in a fuel cell power system
Luna Pacho, Julio Alberto; Jemei, Samir; Yousfi-Steiner, Nadia; Husar, Attila Peter; Serra, Maria; Hissel, Daniel (2016)
Article
Accés obertIn this work, a nonlinear model predictive control (NMPC) strategy is proposed to improve the efficiency and enhance the durability of a proton exchange membrane fuel cell (PEMFC) power system. The PEMFC controller is based ... -
Nonlinear predictive control for the concentrations profile regulation in a PEM fuel cell anode gas channel
Luna Pacho, Julio Alberto; Ocampo-Martínez, Carlos; Serra, Maria (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés obertIn this work, a nonlinear model predictive control (NMPC) strategy is proposed to regulate the concentrations of the different gas species inside a Proton Exchange Membrane Fuel Cell (PEMFC) anode gas channel. The purpose ... -
Nonlinear predictive control for the concentrations profile regulation under unknown reaction disturbances in a fuel cell anode gas channel
Luna Pacho, Julio Alberto; Ocampo-Martínez, Carlos; Serra, Maria (2015-05)
Article
Accés obertIn this work, a nonlinear model predictive control (NMPC) strategy is proposed to regulate the concentrations of the different gas species inside a Proton Exchange Membrane Fuel Cell (PEMFC) anode gas channel. The purpose ... -
Nonlinear predictive control for the four-tanks plant flow regulation
Luna Pacho, Julio Alberto; Acevedo Valle, Juan M.; Rosanas Boeta, Noe; Costa Castelló, Ramon (2014)
Text en actes de congrés
Accés restringit per política de l'editorialThe four-tanks system is well-known and a considerable number of works study it in the existent literature. This work proposes a nonlinear model predictive control (NMPC) design to regulate the water ¿ow inputs of the four ... -
Observación de la fracción de agua líquida en pilas de combustible tipo PEM de cátodo abierto
Costa Castelló, Ramon; Luna Pacho, Julio Alberto (Universidad de Oviedo, 2017)
Text en actes de congrés
Accés obertEn este trabajo se diseña un observador no-lineal basado en modos deslizantes para la estimación de la fracción de agua líquida en una pila de combustible tipo PEM de cátodo abierto. La pila de combustible se modela con ... -
Observation of the electrochemically active surface area in a proton exchange membrane fuel cell
Luna Pacho, Julio Alberto; Usai, Elio; Husar, Attila Peter; Serra, Maria (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés obertIn this paper a methodology for the estimation of the Electrochemically active Surface Area (ECSA) of a Proton Exchange Membrane Fuel Cell (PEMFC) is developed. Specifically, the ECSA in the Cathode Catalyst Layer (CCL) ... -
Observation of the internal states of a PEMFC anode gas channel
Luna Pacho, Julio Alberto; Batlle Arnau, Carles; Kunusch, Cristian; Riera, Jordi (Riera Colomer); Sarmiento Carnevali, María Laura; Serra, Maria (2013)
Text en actes de congrés
Accés obertIn this work a non-linear, model-based state observer is developed. Dynamics of the system described by a distributed parameter, partial differential equations model. Forward and backward discretization of the model to ... -
State estimation in fuel cell systems : a sliding mode approach
Luna Pacho, Julio Alberto; Usai, Elio; Husar, Attila Peter; Serra, Maria (2015)
Text en actes de congrés
Accés obertIn this paper, a nonlinear distributed parameter observer (NDOP) is developed for the estimation of the internal condi-tions of a proton exchange membrane fuel cell (PEMFC). In particular, the estimation of the internal ... -
State Observers Design for PEMFC Systems
Luna Pacho, Julio Alberto (Universitat Politècnica de Catalunya, 2014-06)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorA series of nonlinear state observers are developed to estimate unmeasurable variables in a Proton Exchange Membrane Fuel Cell (PEMFC) system. A study of the most relevant variables to estimate which will improve the e ... -
State observers design for PEMFC systems
Luna Pacho, Julio Alberto; Husar, Attila Peter; Serra, Maria (2014)
Text en actes de congrés
Accés restringit per política de l'editorialThis work presents the development of a nonlinear state observer to estimate the values of the different gas species concentration profiles in a Proton Exchange Membrane Fuel Cell (PEMFC) energy system. The selection of ...