Ara es mostren els items 1-13 de 13

  • 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 obert
    In 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 ...
  • Nonlinear distributed parameter observer design for fuel cell systems 

    Luna Pacho, Julio Alberto; Husar, Attila Peter; Serra, Maria (2015-09-14)
    Article
    Accés obert
    This 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 obert
    The 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 obert
    This 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 obert
    In 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 obert
    In 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 obert
    In 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'editorial
    The 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 ...
  • 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 obert
    In 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 obert
    In 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 obert
    In 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'autor
    A 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'editorial
    This 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 ...