Ara es mostren els items 1-20 de 37

  • 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 ...
  • A methodology for building a fault diagnoser for hybrid systems 

    Vento Maldonado, Jorge; Puig Cayuela, Vicenç; Sarrate Estruch, Ramon (2011)
    Text en actes de congrés
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    In this paper, a design methodology for building diagnosers for hybrid systems is proposed. The design methodology uses as a starting point a hybrid automaton model to represent the hybrid system behaviour by means of ...
  • An incremental hybrid system diagnoser automaton enhanced by discernibility properties 

    Vento Maldonado, Jorge I.; Travé-Massuyès, Louise; Puig Cayuela, Vicenç; Sarrate Estruch, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2014-12-18)
    Article
    Accés restringit per política de l'editorial
    This paper proposes a method to track the system mode and diagnose a hybrid system without building an entire diagnoser off-line. The method is supported by a hybrid automaton (HA) model that represents the hybrid system ...
  • Automatic control of pollutant on a shallow river using surface water systems: application to the Ebro River 

    Puig Cayuela, Vicenç; Romera Formiguera, Juli; Quevedo Casín, Joseba Jokin; Sarrate Estruch, Ramon; Morales Hernández, Mario; González Sanchis, M.; Garcia Navarro, María del Pilar (2014-01-01)
    Article
    Accés restringit per política de l'editorial
    In this paper, the problem of automatic control of pollutant on a shallow river using surface water systems is addressed using a benchmark test case based in the Ebro River. The Ebro River presents flooding episodes in the ...
  • 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)
    Text en actes de congrés
    Accés obert
    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 ...
  • Combining learning in model space fault diagnosis with data validation/reconstruction: Application to the Barcelona water network 

    Quevedo Casín, Joseba Jokin; Chen, Heran; Cugueró Escofet, Miquel Àngel; Tino, Peter; Puig Cayuela, Vicenç; García Valverde, Diego; Sarrate Estruch, Ramon; Yao, Xin (2014-02-14)
    Article
    Accés restringit per política de l'editorial
    In this paper, an integrated data validation/reconstruction and fault diagnosis approach is proposed for critical infrastructure systems. The proposed methodology is implemented in a two-stage approach. In the first stage, ...
  • 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
    Accés obert
    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 ...
  • Fault detection and isolation in critical infrastructure systems 

    Puig Cayuela, Vicenç; Escobet Canal, Teresa; Sarrate Estruch, Ramon; Quevedo Casín, Joseba Jokin (2014)
    Text en actes de congrés
    Accés obert
    Critical infrastructure systems (CIS) are complex large-scale systems which in turn require highly sophisticated supervisory control systems to ensure that high performance can be achieved and maintained under adverse ...
  • Fault detection and isolation of hybrid systems using diagnosers that reason on components 

    Vento Maldonado, Jorge; Puig Cayuela, Vicenç; Sarrate Estruch, Ramon; Travé-Massuyés, Louise (2012)
    Text en actes de congrés
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    In this paper, a design methodology and implementation architecure for diagnosers in the framework of hybrid systems is proposed. The design methodo logy is based on the hybrid automata model that represents the system ...
  • Fault diagnosis 

    Escobet Canal, Teresa; Sarrate Estruch, Ramon; Comasòlivas Font, Ramon (Springer, 2017)
    Capítol de llibre
    Accés restringit per política de l'editorial
    This book presents a set of approaches for the real-time monitoring and control of drinking-water networks based on advanced information and communication technologies. It shows the reader how to achieve significant ...
  • Fault diagnosis based on causal computations 

    Rosich Oliva, Albert; Frisk, Erik; Åslund, Jan; Sarrate Estruch, Ramon; Nejjari Akhi-Elarab, Fatiha (2012-03-23)
    Article
    Accés restringit per decisió de l'autor
    This paper focuses on residual generation for model-based fault diagnosis. Specifically, a methodology to derive residual generators when nonlinear equations are present in the model is developed. A main result is the ...
  • Health-aware control of an octorotor UAV system based on actuator reliability 

    Salazar Cortés, Jean Carlo; Sanjuan Gómez, Adrián; Nejjari Akhi-Elarab, Fatiha; Sarrate Estruch, Ramon (2017)
    Text en actes de congrés
    Accés obert
    A major goal in modern flight control systems is the need of improving the reliability. This work presents a reliable control approach of an octorotor UAV that allows distributing the control effort among the actuators ...
  • Hybrid Automaton Incremental Construction for Online Diagnosis 

    Vento Maldonado, Jorge; Travé-Massuyès, Louise; Sarrate Estruch, Ramon; Puig Cayuela, Vicenç (2013)
    Text en actes de congrés
    Accés obert
    This paper proposes a method to track the system mode and diagnose a hybrid system without building an entire diagnoser off-line. The method is supported by a hybrid automaton model that represents the hybrid system ...
  • Leak localization in water networks: a model-based methodology using pressure sensors applied to a real network in Barcelona 

    Pérez Magrané, Ramon; Sanz Estapé, Gerard; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; Cugueró Escofet, Miquel Àngel; Nejjari Akhi-Elarab, Fatiha; Meseguer, Jordi; Cembrano Gennari, Gabriela; Mirats Tur, Josep Maria; Sarrate Estruch, Ramon (2014-08-01)
    Article
    Accés restringit per política de l'editorial
    The efficient distribution of water is a subject of major concern for water utilities and authorities [1]. While some leaks in water distribution networks (WDNs) are unavoidable, one of the main challenges in improving the ...
  • Model-based optimal sensor placement approaches to fuel cell stack system fault diagnosis 

    Sarrate Estruch, Ramon; Nejjari Akhi-Elarab, Fatiha; Rosich Oliva, Albert (2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The problem of optimal sensor placement for FDI consists in d etermining the set of sensors that minimizes a pre-defined cost function satisfying at the same time a pre-established set of FDI specifications ...
  • MPC design based on a DBN reliability model: Application to drinking water networks 

    Salazar Cortés, Jean Carlo; Weber, Philipe; Sarrate Estruch, Ramon; Theilliol, Didier; Nejjari Akhi-Elarab, Fatiha (International Federation of Automatic Control (IFAC), 2015)
    Text en actes de congrés
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    This paper presents a Model Predictive Control (MPC) strategy taking into account system and component reliability for drinking water networks. The objective is to deal from an availability point of view with a closed-loop ...
  • MPC framework for system reliability optimization 

    Salazar Cortés, Jean Carlo; Weber, Philipe; Nejjari Akhi-Elarab, Fatiha; Theilliol, Didier; Sarrate Estruch, Ramon (Springer, 2016-01-01)
    Capítol de llibre
    Accés restringit per política de l'editorial
    This book is devoted to the demands of research and industrial centers for diagnostics, monitoring and decision making systems that result from the increasing complexity of automation and systems, the need to ensure the ...
  • On-line model-based fault detection and isolation for PEM fuel cell stack systems 

    Rosich, Albert; Sarrate Estruch, Ramon; Nejjari Akhi-Elarab, Fatiha (2013-11-19)
    Article
    Accés restringit per política de l'editorial
    Efficient and reliable operation of Polymer Electrolyte Membrane (PEM) fuel cells are key requirements for their successful commercialization and application. The use of diagnostic techniques enables the achievement of ...
  • Optimal pressure sensor placement in water distribution networks minimizing leak location uncertainty 

    Nejjari Akhi-Elarab, Fatiha; Sarrate Estruch, Ramon; Blesa Izquierdo, Joaquim (Elsevier, 2015)
    Text en actes de congrés
    Accés obert
    In this paper an optimal sensor placement strategy based on pressure sensitivity matrix analysis and an exhaustive search strategy that maximizes some diagnosis specifications for a water distribution network is presented. ...
  • Optimal Sensor Placement For Fuel Cell System Diagnosis using BILP Formulation 

    Nejjari Akhi-Elarab, Fatiha; Sarrate Estruch, Ramon; Rosich Oliva, Albert (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper presents the application of a new methodology for Fault Detection and Isolation (FDI) to a Fuel Cell System. The work is devoted to find an optimal set of sensors for model-based FDI. The novelty is that binary ...