Ara es mostren els items 1-20 de 101

  • A bank of virtual sensors for active fault tolerant control of LPV systems 

    Rotondo, Damiano; Puig Cayuela, Vicenç; Nejjari Akhi-Elarab, Fatiha (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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    In this paper, a Fault Tolerant Control (FTC) strategy based on a bank of virtual sensors is proposed for Linear Parameter Varying (LPV) systems subject to sensor faults, with the novel feature that, instead of hiding the ...
  • A fault-hiding approach for the switching quasi-LPV fault-tolerant control of a four-wheeled omnidirectional mobile robot 

    Rotondo, Damiano; Puig Cayuela, Vicenç; Nejjari Akhi-Elarab, Fatiha; Romera Formiguera, Juli (Institute of Electrical and Electronics Engineers (IEEE), 2015-06-01)
    Article
    Accés restringit per política de l'editorial
    This paper proposes a reference model approach for the trajectory tracking of a four-wheeled omnidirectional mobile robot. In particular, the error model is brought to a quasi-linear-parameter-varying (LPV) form suitable ...
  • A Framework for RNAV trajectory generation minimizing noise nuisances 

    Prats Menéndez, Xavier; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; Mora Camino, F. (Faculty of Transport and Traffic Engineering, 2006-06)
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    In this work it is presented a framework for a global optimization tool that will take into account air craft dynamics and performances, noise nuisances and RNAV radionavigation requirements in order to assess an optimum ...
  • A shifting pole placement approach for the design of parameter-scheduled state-feedback controllers 

    Rotondo, Damiano; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç (2013)
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    In this paper, the problem of designing a parameter-scheduled state-feedback controller is investigated. The main novelty and contribution of this paper is the extension of the classical regional pole placement problem, ...
  • A virtual actuator and sensor approach for fault tolerant control of LPV systems 

    Rotondo, Damiano; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç (2014-03-01)
    Article
    Accés restringit per política de l'editorial
    In this paper, a fault tolerant control (FTC) strategy using virtual actuators and sensors for linear parameter varying (LPV) systems is proposed. The main idea of this FTC method, initially developed for LTI systems, is ...
  • A virtual actuator approach for fault tolerant control of switching LPV systems 

    Rotondo, Damiano; Puig Cayuela, Vicenç; Nejjari Akhi-Elarab, Fatiha (2014)
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    In this paper, virtual actuators are proposed as a Fault Tolerant Control (FTC) strategy for switching Linear Parameter Varying (LPV) systems subject to actuator faults. The overall solution relies on the addition of a ...
  • A virtual actuator approach for the fault tolerant control of unstable linear systems subject to actuator saturation and fault isolation delay 

    Rotondo, Damiano; Ponsart, J. C.; Theilliol, Didier; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç (2015-01-01)
    Article
    Accés obert
    This paper presents a fault tolerant control (FTC) strategy for unstable linear systems subject to actuator saturation and fault isolation delay. The solution relies on virtual actuators, an active fault-hiding method that ...
  • Abnormal quality detection and isolation in water distribution networks using simulation models 

    Nejjari Akhi-Elarab, Fatiha; Pérez Magrané, Ramon; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; Sarrate Estruch, Ramon; Cugueró Escofet, Miquel Àngel; Sanz Estapé, Gerard; Mirats, J M (2012-11-16)
    Article
    Accés obert
    This paper proposes a model based detection and localisation method to deal with abnormal quality levels based on the chlorine measurements and chlorine sensitivity analysis in a water distribution network. A fault isolation ...
  • Abnormal quality detection and isolation in water distribution networks using simulation models 

    Nejjari Akhi-Elarab, Fatiha; Pérez Magrané, Ramon; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; Cugueró Escofet, Miquel Àngel; Sanz Estapé, Gerard; Mirats Tur, Josep Maria (2011)
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  • Actuator multiplicative fault estimation in discrete-time LPV systems using switched observers 

    Rotondo, Damiano; López Estrada, Francisco Ronay; Nejjari Akhi-Elarab, Fatiha; Ponsart, J. C.; Theilliol, Didier; Puig Cayuela, Vicenç (2016-09-01)
    Article
    Accés restringit per política de l'editorial
    This paper proposes an observer for the joint state and fault estimation devoted to discrete-time linear parameter varying (LPV) systems subject to actuator faults. The major contribution of this work is that the observer ...
  • Adaptive observer for switching linear parameter-varying (LPV) systems 

    Rotondo, Damiano; Reppa, Vasso; Puig Cayuela, Vicenç; Nejjari Akhi-Elarab, Fatiha (2014)
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    In this paper, the problem of joint state and parameter estimation in switching Linear Parameter-Varying (LPV) systems is considered. The proposed solution relies on an adaptive observer, which is designed finding a solution ...
  • Aircraft annoyance minimization around urban airports based on fuzzy logic 

    Quevedo Casín, Joseba Jokin; Prats Menéndez, Xavier; Nejjari Akhi-Elarab, Fatiha; Puig, Vicenç (GERAD; École Polytechnique de Montréal; Cadi Ayyad University, 2007-05)
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    This paper presents a strategy based on fuzzy logic and lexicographic multi-objective optimization for designing noise abatement procedures aimed at reducing the noise exposure of the population living around the airports. ...
  • An interval NLPV parity equations approach for fault detection and isolation of a wind farm 

    Blesa Izquierdo, Joaquim; Jiménez, Pedro; Rotondo, Damiano; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç (Institute of Electrical and Electronics Engineers (IEEE), 2014-12-25)
    Article
    Accés obert
    In this paper, the problem of fault diagnosis of a wind farm is addressed using interval nonlinear parameter varying (NLPV) parity equations. Fault detection is based on the use of parity equations assuming unknown but ...
  • An LMI approach to robust fault estimation for a class of nonlinear systems 

    Witczak, Marcin; Buciakowski, Mariusz; Puig Cayuela, Vicenç; Rotondo, Damiano; Nejjari Akhi-Elarab, Fatiha (2015-06-01)
    Article
    Accés obert
    The paper presents a robust fault estimation approach for a class of nonlinear discrete-time systems. In particular, two sources of uncertainty are present in the considered class of systems, that is, an unknown input and ...
  • Automated generation and comparison of Takagi–Sugeno and polytopic quasi-LPV models 

    Rotondo, Damiano; Puig Cayuela, Vicenç; Nejjari Akhi-Elarab, Fatiha; Witczak, Marcin (2015-10-07)
    Article
    Accés obert
    In the last decades, gain-scheduling control techniques have consolidated as an efficient answer to analysis and synthesis problems for non-linear systems. Among the approaches proposed in the literature, the linear parameter ...
  • Chlorine decay model calibration and comparison: application to a real water network 

    Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç; Pérez Magrané, Ramon; Quevedo Casín, Joseba Jokin; Cugueró Escofet, Miquel Àngel; Sanz Estapé, Gerard; Mirats Tur, Josep Maria (2013)
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    This work presents a methodology to efficiently calibrate chlorine decay models. The calibration consists in estimating the unknown parameters by comparing the measured and simulated chlorine concentrations at the monitored ...
  • Chlorine decay model calibration and comparison: application to a real water network 

    Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç; Pérez Magrané, Ramon; Quevedo Casín, Joseba Jokin; Cugueró Escofet, Miquel Àngel; Sanz Estapé, Gerard; Mirats Tur, Josep Maria (2013)
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    This work presents a methodology to efficiently calibrate chlorine decay models. The calibration consists in estimating the unknown parameters by comparing the measured and simulated chlorine concentrations at the monitored ...
  • Clustering techniques applied to sensor placement for leak detection and location in water distribution networks 

    Sarrate Estruch, Ramon; Blesa Izquierdo, Joaquim; Nejjari Akhi-Elarab, Fatiha (2014)
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    This work presents an optimization strategy that maximizes the leak locatability performance of water distribution networks (WDN). The goal is to characterize and determine a sensor configuration that guarantees a ...
  • Containing Aircraft Noise Levels at take-off: A Mathematical Programming Approach 

    Nejjari Akhi-Elarab, Fatiha; Prats Menéndez, Xavier; Puig, Vicenç; Quevedo Casín, Joseba Jokin; Polit, Monique; Ouattara, Baba; Achaibou, Karim; Mora-Camino, Félix (International Institute of Noise Control Engineering, 2005-08)
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    The sustained growth of air transportation traffic along the last decades has induced increasing noise exposure for the areas surrounding large and medium airports. This study concentrates on the optimization of the ...
  • Creació d'un bloc d'optativitat amb un projecte pràctic comú, coherent i integrador 

    Planas Dangla, Rita María; Cugueró Escofet, Josep; Hernández Palacín, Juan Carlos; Morcego Seix, Bernardo; Nejjari Akhi-Elarab, Fatiha; Pérez Magrané, Ramon; Quevedo Casín, Joseba Jokin; Sarrate Estruch, Ramon (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
    Text en actes de congrés / Comunicació de congrés
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    El projecte s’emmarca dins la transformació dels estudis cap a l’EEES i concretament a l’Escola d’Enginyers de Terrassa (EET). L’objectiu era dissenyar i aplicar un bloc de 3 assignatures optatives del Grau d’Enginyeria ...