Ara es mostren els items 127-146 de 216

    • Model-based analysis for the thermal management of open-cathode proton exchange membrane fuel cell systems concerning efficiency and stability 

      Costa Castelló, Ramon; Strahl, Stephan (2016-11-01)
      Article
      Accés obert
      In this work we present a dynamic, control-oriented, concentrated parameter model of an open-cathode proton exchange membrane fuel cell system for the study of stability and efficiency improvement with respect to thermal ...
    • Modeling and control of HTPEMFC based combined heat and power for confort control 

      Martínez Molina, Pau; Serra, Maria; Costa Castelló, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      In this work the dynamic model of a domestic heating system is described. The heating system is based on a High Temperature PEM Fuel Cell. The model corresponds to a home placed in the city of Barcelona. The set of equations ...
    • Modelling and adaptive parameter estimation for a piezoelectric cantilever beam 

      Wang, Bin; Costa Castelló, Ramon; Na, Jing; Torre Rodríguez, Óscar de la; Escaler Puigoriol, Francesc Xavier (2022)
      Article
      Accés obert
      This paper proposes a new adaptive estimation approach to online estimate the model parameters of a piezoelectric cantilever beam. The beam behavior is firstly modeled using partial differential equations (PDE) considering ...
    • Modelling and estimation in lithium-ion batteries: a literature review 

      Martí Florences, Miquel; Cecilia Piñol, Andreu; Costa Castelló, Ramon (2023-09-27)
      Article
      Accés obert
      Lithium-ion batteries are widely recognised as the leading technology for electrochemical energy storage. Their applications in the automotive industry and integration with renewable energy grids highlight their current ...
    • Modelling and estimation of vanadium redox flow batteries: a review 

      Puleston, Thomas Paul; Clemente León, Alejandro; Costa Castelló, Ramon; Serra, Maria (Multidisciplinary Digital Publishing Institute (MDPI), 2022-09-08)
      Article
      Accés obert
      Redox flow batteries are one of the most promising technologies for large-scale energy storage, especially in applications based on renewable energies. In this context, considerable efforts have been made in the last few ...
    • Modelling and operation strategy approaches for on-site hydrogen refuelling stations 

      Cardona Rubio, Pol; Costa Castelló, Ramon; Roda, Vicente; Carroquino, Javier; Valiño Garcia, Luis; Ocampo-Martínez, Carlos; Serra, Maria (Elsevier, 2023-09-01)
      Article
      Accés obert
      The number of Fuel Cell Electric Vehicles (FCEVs) in circulation has undergone a significant increase in recent years. This trend is foreseen to be stronger in the near future. In correlation with the FCEVs market increase, ...
    • Modelling the electrostatic actuation of MEMS: state of the art 2005. 

      Costa Castelló, Ramon; Shkel, A.M.; Fargas Marquès, A. (Universitat Politècnica de Catalunya. Institut d'Organització i Control de Sistemes Industrials, 2005-09)
      Report de recerca
      Accés obert
      Most of MEMS devices are actuated using electrostatic forces. Parallel or lateral plate actuators are the types commonly used. Nevertheless, electrostatic actuation has some limitations due to its non-linear nature. This ...
    • New interactive books for control education 

      Guzmán Sánchez, José Luis; Piguet, Yves; Dormido Bencomo, Sebastián; Berenguel Soria, Manuel; Costa Castelló, Ramon (2018-01-01)
      Article
      Accés obert
      This paper presents ongoing project to develop new interactive books for control education. The novelty of the proposed idea is to merge web-based solutions with LaTex text into a epub format. In such a way, classical ...
    • Non-uniform sampling in digital repetitive control systems: An LMI stability analysis 

      Ramos Fuentes, Germán Andrés; Olm Miras, Josep Maria; Costa Castelló, Ramon (2009-03)
      Report de recerca
      Accés obert
      Digital repetitive control is a technique which allows to track periodic references and/or reject periodic disturbances. Repetitive controllers are usually designed assuming a fixed frequency for the signals to be ...
    • Nonlinear adaptive observation of the liquid water saturation in polymer electrolyte membrane fuel cells 

      Cecilia Piñol, Andreu; Serra, Maria; Costa Castelló, Ramon (2021)
      Article
      Accés obert
      Efficiency, reliability and lifetime of polymer electrolyte membrane fuel cells (PEMFCs) are significantly limited by inadequate water management. High-performance water active control algorithms cannot be implemented due ...
    • Nonlinear experiments : a saturation example 

      Lampon Diestre, Cristina; Costa Castelló, Ramon; Dormido Bencomo, Sebastián (2015)
      Text en actes de congrés
      Accés obert
      Most control system are in uenced by static nonlinearities. It is important for an engineer to understand which is the e ect of these nonlinearities. Unfortunatelly most hands-on laboratory can not be used for these type ...
    • 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 ...
    • 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 obert
      En 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 ...
    • Observador de alta ganancia con zona muerta ajustable para estimar la saturación de agua líquida en pilas de combustible tipo PEM 

      Cecilia Piñol, Andreu; Costa Castelló, Ramon (Elsevier, 2020-04-01)
      Article
      Accés obert
      In the area of PEM fuel cells, water management remains one of the most challenging issues affecting PEMFC efficiency and lifetime. Liquid water active control and supervision techniques are limited by the absence of online ...
    • Observador de alta ganancia con zona muerta para pilas de combustible PEM de cátodo abierto 

      Cecilia Piñol, Andreu; Costa Castelló, Ramon (2019)
      Text en actes de congrés
      Accés obert
      En este trabajo se presenta el diseño de un observador de estado para la estimación de la saturación de agua líquida en la capa catalizadora del cátodo de una pila de combustible PEM de cátodo abierto. El observador propuesto ...
    • Odd-Harmonic Digital Repetitive Control of a Single-Phase Current Active Filter 

      Costa Castelló, Ramon; Griñó Cubero, Robert; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2004-07)
      Article
      Accés obert
      Shunt active power filters have been proved as useful elements to correct distorted currents caused by nonlinear loads in power distribution systems. This work presents an all-digital approach, based on the repetitive ...
    • Odd-harmonic repetitive control of an active filter under varying network frequency: a small-gain theorem-based stability analysis 

      Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon; Cardoner Parpal, Rafel (2010)
      Text en actes de congrés
      Accés restringit per decisió de l'autor
      This work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using repetitive control, and aims at the obtention ...
    • Odd-harmonic repetitive control of an active filter under varying network frequency: control design and stability analysis 

      Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon; Cardoner Parpal, Rafel (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Text en actes de congrés
      Accés obert
      This work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using repetitive control, and aims at the obtention ...
    • Odd-harmonic Repetitive Control of an Active Filter under Varying Network Frequency: Practical Considerations 

      Costa Castelló, Ramon; Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Cardoner Parpal, Rafel (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using oddharmonic repetitive control, and aims at ...
    • On addressing the security and stability issues due to false data injection attacks in DC microgrids an adaptive observer approach 

      Cecilia Piñol, Andreu; Sahoo, Subham; Dragicevic, Tomislav; Costa Castelló, Ramon; Blaabjerg, Frede (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Article
      Accés obert
      This paper proposes an observer-based methodology to detect and mitigate false data injection attacks in collaborative DC microgrids. The ability of observers to effectively detect such attacks is complicated by the presence ...