Exploració per tema "Hybrid systems"

Ara es mostren els items 1-20 de 22

    • A heuristic method to design autonomous village electrification projects with renewable energies 

      Ranaboldo, Matteo; García Villoria, Alberto; Ferrer Martí, Laia; Pastor Moreno, Rafael (2014-08-14)
      Article
      Accés restringit per política de l'editorial
      Systems relying on renewable energies demonstrated to be a reliable and sustainable option to electrify isolated communities autonomously. Hybrid systems that combine different energy resources and distribution microgrids ...

    • A meta-heuristic method to design off-grid community electrification projects with renewable energies 

      Ranaboldo, Matteo; García Villoria, Alberto; Ferrer Martí, Laia; Pastor Moreno, Rafael (2015)
      Article
      Accés obert
      The design of off-grid electrification projects considering hybrid systems and distribution microgrids is a complex task that requires the use of decision support tools. Most of existing tools focus on the design of hybrid ...

    • 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
      Accés restringit per decisió de l'autor
      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 ...

    • A simple and effective methodology for sizing electrical energy storage (EES) systems based on energy balance 

      Kichou, Sofiane; Markvart, Tomas; Wolf, Petr; Silvestre Bergés, Santiago; Chouder, Aissa (Elsevier, 2022-05)
      Article
      Accés restringit per política de l'editorial
      The use of the electrical energy storage (EES) plays an important role in the transition of energy generation towards renewable energy sources (RESs). An effective sizing of EES systems is very important in order to cope ...

    • Agile accelerated aging and degradation characterization of a V/F controlled induction motor in a conveyor belt process 

      García España, Claudia M.; Quevedo Casín, Joseba Jokin (2011)
      Text en actes de congrés
      Accés restringit per decisió de l'autor
      Although induction machines are reliable, they are subjected to some failures; the understanding degradation behaviour of Induction Motors (IM) is crucial for the adoption and application of health Management methodologies ...

    • Análisis e implementación de un sistema de accionamiento utilizando tecnología de reluctancia híbrida HRM (Hybrid Reluctance Motor) 

      Bravo Castro, Joel (Universitat Politècnica de Catalunya, 2024-02-06)
      Projecte Final de Màster Oficial
      Accés obert
      L'anàlisi de la viabilitat per implementar la tecnologia de motors híbrids de reluctància variable (HRM) en contactors, feta mitjançant el mètode d'anàlisi d'elements finits magnètics amb FEMM juntament amb MATLAB, va ...

    • Development of a low-level, algebra-based library to provide platform portability on hybrid supercomputers 

      Álvarez Farré, Xavier; Alsalti Baldellou, Àdel; Colomer Rey, Guillem; Gorobets, Andrei; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio (Scipedia, 2022)
      Text en actes de congrés
      Accés obert
      Continuous enhancement in hardware technologies enables scientific computing to advance incessantly and reach further aims. Since the start of the global race for exascale high-performance computing, massively-parallel ...

    • Event-driven optimization-based control of hybrid systems with integral continuous-time dynamics 

      Di Cairano, S.; Bemporad, A; Julvez Bueno, Jorge Emilio (2009-05)
      Article
      Accés restringit per política de l'editorial
      In this paper we introduce a class of continuous-time hybrid dynamical systems called integral continuous-time hybrid automata (icHA) for which we propose an event-driven optimization-based control strategy. Events include ...

    • 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
      Accés restringit per decisió de l'autor
      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 ...

    • Grid voltage regulation using a reset PI+CI controller for energy storage systems 

      Raveendran Nair, Unnikrishnan; Costa Castelló, Ramon; Baños Torrico, Alfonso (2018-01-01)
      Article
      Accés obert
      Hybrid controllers are capable of improved performance over their linear counterparts. In particular, reset controllers like the PI+CI are capable of fast flat response for lag dominant plants. Grid connected power converters ...

    • Hybrid reluctance machines with U-shaped electromagnets and permanent magnets 

      Andrada Gascón, Pedro; Blanqué Molina, Balduino; Martínez Piera, Eusebio; Torrent Burgués, Marcel; Rolando Ávila, Oscar; Gomila, Marc; Adelantado, Xavier (2015-03-01)
      Article
      Accés obert
      This paper is about hybrid reluctance machines, in which the stator or fixed part has a combination of U-shaped electromagnets with permanents magnets placedbetween their arms while the moving part is simply a structure ...

    • Hybrid sorption and pressure-driven membrane technologies for organic micropollutants removal in advanced water reclamation: A techno-economic assessment 

      Echevarría Díez-Canedo, Carlos; Valderrama Ángel, César Alberto; Cortina Pallás, José Luís; Arnaldos, Marina; Bernat Camí, Xavier; De la Cal, Agustina; Boleda, Maria Rosa; Vega, Àlex; Teuler, Albert; Castellví, E. (2020-11-10)
      Article
      Accés obert
      The persistence of certain organic-micropollutants (OMP) in conventional wastewater and reclamation treatments represents a growing concern due to its associated uncertain effects on human health and the environment. This ...

    • Hydro/Battery Hybrid Systems for frequency regulation 

      Laban, Danilo (Universitat Politècnica de Catalunya, 2019-07-08)
      Projecte Final de Màster Oficial
      Accés obert
      An innovative Hydro/Battery Hybrid System (HBHS), composed of a hydropower plant (HPP) and a Battery Energy Storage System (BESS) is proposed to provide frequency regulation services in the Nordic Power System (NPS). The ...

    • Integrating inference and neural classification in a hybrid system for recognition tasks 

      Gregorio, Massimo de (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1996)
      Article
      Accés obert
      While the coupling of artificial of neural networks (ANN) and symbolic AI (SAI) is a strategy adopted in many hybrid systems, a real integration of the two methodologies has not been thoroughly investigated yet: so far, ...

    • Modelado, simulación y control de un convertidor boost acoplado magnéticamente 

      Carrero Candelas, Niliana Andreina (Universitat Politècnica de Catalunya, 2014-07-18)
      Tesi
      Accés obert
      This thesis covered the modeling, simulation as well as the design of a control law for a coupled inductor Boost converter. In particular, from the point of view of modeling, we focused on the use of averaged modeling ...

    • Needs of Energy Storage to Supply the Urban Services in Peripheral Areas. Approach to Sustainability Cities 

      Ventura Duran, Oriol (Universitat Politècnica de Catalunya, 2020-07-28)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Instituto Superior Técnico Lisboa
      The energy transition towards the change of the current energy model into a new distributed model based on renewable energies is a growing public demand in a social environment. To ensure that cities and human settlements ...

    • On the use of i* for architecting hybrid systems: a method and an evaluation report 

      Carvallo Vega, Juan Pablo; Franch Gutiérrez, Javier (Springer Verlag, 2009)
      Text en actes de congrés
      Accés obert
      The architectural definition of hybrid software systems is a challenging problem that demands to reconcile stakeholders’ strategic needs and components marketplace, whilst defining an appropriate set of services. We have ...

    • Powering the future: a comprehensive review of battery energy storage systems 

      Obrador Rey, Sergio; Romero Baena, Juan Alberto; Trilla Romero, Lluís; Filbà Martínez, Àlber; Sánchez Roger, Xavier; Attique Qamar, Muhammad; Domínguez-García, José Luis; Gevorkov, Levon (2023-09-01)
      Article
      Accés obert
      Global society is significantly speeding up the adoption of renewable energy sources and their integration into the current existing grid in order to counteract growing environmental problems, particularly the increased ...

    • Sliding-mode analysis of the dynamics of sigma-delta controls of dielectric charging 

      Domínguez Pumar, Manuel; Gorreta Mariné, Sergio; Pons Nin, Joan (Institute of Electrical and Electronics Engineers (IEEE), 2016-03-08)
      Article
      Accés obert
      The purpose of this paper is to show that sigma-delta controllers of dielectric charge can be analyzed using the tools of sliding-mode controllers, in the infinite sampling frequency approximation. This allows to study the ...

    • Solving diagnosability of hybrid systems via abstraction and discrete event techniques 

      Grastien, Alban; Travé-Massuyès, Louise; Puig Cayuela, Vicenç (2017)
      Text en actes de congrés
      Accés obert
      This paper addresses the problem of determining the diagnosability of hybrid systems by abstracting hybrid models to a discrete event ,etting. From the continuous model the abstraction only remembers two pieces of information: ...