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Ara es mostren els items 45-64 de 110

    • Feedback control of limit cycles: a switching control strategy based on nonsmooth bifurcation theory 

      Angulo García, Fabiola; Bernardo, Mario di; Fossas Colet, Enric; Olivar, Gerard (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-02)
      Article
      Accés obert
      In this paper, we present a method to control limit cycles in smooth planar systems making use of the theory of nonsmooth bifurcations. By designing an appropriate switching controller, the occurrence of a corner-collision ...

    • Feedback linearizing control of a magnetically coupled multiport dc-dc converter for automotive applications 

      Olm Miras, Josep Maria; Fossas Colet, Enric; Repecho del Corral, Víctor; Dòria Cerezo, Arnau; Griñó Cubero, Robert (2019)
      Text en actes de congrés
      Accés obert
      This paper presents a feedback linearization-based control strategy for a a magnetically coupled multiport dc-dc converter aimed at automotive applications. Essentially, a transformation of control and state variables is ...

    • Feedback passivity of nonlinear discrete-time systems with direct input-output link 

      Navarro López, Eva María; Fossas Colet, Enric (Elsevier, 2004-03)
      Article
      Accés obert
      This paper is devoted to the study of the feedback passivity property in nonlinear discrete-time systems. The relative degree and zero dynamics of the non-passive system are related to the feedback passivity of the system. ...

    • Fixed frequency sliding mode-based robust inversion with a full-bridge current DC-link buck-boost 

      Olm Miras, Josep Maria; Biel Solé, Domingo; Fossas Colet, Enric; Cardoner Parpal, Rafel (2014-01)
      Article
      Accés restringit per política de l'editorial
      The substitution of the original switches by a full bridge in a Non-Inverting Buck-Boost converter results in an inverter capable of carrying out step-down and step-up tasks as well under sliding mode control. The control ...

    • Fixed switching frequency sliding mode control using an hysteresis band controller 

      Repecho del Corral, Víctor; Biel Solé, Domingo; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents a hysteresis band controller in charge of fixing the switching frequency of a sliding mode controller. The proposed control measures the switching period of the control signal and modifies the hysteresis ...

    • Galerkin method and approximate tracking in a non-minimum phase bilinear system 

      Fossas Colet, Enric; Olm Miras, Josep Maria (American Institute of Mathematical Sciences, 2007-01)
      Article
      Accés obert
      The tracking control of non-minimum phase systems is nowadays an open and challenging field, because a general theory is still not available. This article proposes an indirect control strategy in which a key role is played ...

    • Generalized Discontinuous Conduction Modes in the Complementarity Formalism 

      Batlle Arnau, Carles; Fossas Colet, Enric; Merillas Santos, Iván; Miralles de la Asunción, Alicia (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-08)
      Article
      Accés obert
      We model dc–dc power converters using the complementarity formalism. For each position of the switches, the dynamics is given by a linear complementarity system which incorporates, in a natural way, the description of ...

    • GeoPlex experimental setup: generator and converter 

      Dòria Cerezo, Arnau; Batlle Arnau, Carles; Fossas Colet, Enric (2006-01)
      Report de recerca
      Accés obert
      The experimental setup of the Flywhell Energy Storage System is presented. The system is made of a doubly-fed induction machine coupled to a flywheel and a back-to-back converter

    • GEOPLEX: Back-to-back converter for an electrical machine application 

      Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric; Gaviria, César; Griñó Cubero, Robert (Universitat Politècnica de Catalunya. Institut d'Organització i Control de Sistemes Industrials, 2004-10)
      Report de recerca
      Accés obert
      The architecture of a back-to-back converter, needed to feed the rotor windings of a 3-phase doubly-fed induction machine and such that power can flow both ways, is described, from both the modelling and experimental ...

    • GEOPLEX: Benchmark Demonstration 

      Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric (Universitat Politècnica de Catalunya. Institut d'Organització i Control de Sistemes Industrials, 2004-10)
      Report de recerca
      Accés obert
      In this section, we describe the development of a complex multi-domain electromechanical system as an interconnection of simpler subsystems. We first give a global overview of the total system to be modelled, then describe ...

    • GEOPLEX: Control and analysis of GSSA and VSS models 

      Batlle Arnau, Carles; Fossas Colet, Enric; Gaviria, César; Griñó Cubero, Robert (2004-07)
      Report de recerca
      Accés obert
      Two studies about a full-bridge boost rectifier are reported in this deliverable. In the first one the converter is analysed in the frame of Variable Structure Systems and Sliding Mode. In the section 2 of the deliverable, ...

    • GEOPLEX: GSSA and VSS models 

      Batlle Arnau, Carles; Biel Solé, Domingo; Gaviria, César; Griñó Cubero, Robert; Fossas Colet, Enric; Martínez, Sònia (2006-05-24T10:50:14Z)
      Report de recerca
      Accés obert
      This report describes some aspects of the theory of Variable Structure Systems (VSS). It starts with the state-of-the-art classical methods of control and evolves to a description based on average port Hamiltonian models. ...

    • Harmonic balance-based control of a boost DC/AC converter 

      Olm Miras, Josep Maria; Biel Solé, Domingo; Spinetti Rivera, Mario de Jesús; Fossas Colet, Enric (2012-08)
      Article
      Accés obert
      The achievement of step-up inversion with a boost DC/AC converter requires appropriate periodic references for inductor currents, which have to satisfy ordinary differential equations (ODE) of the Abel type. These are ...

    • Herramienta interactiva para el aprendizaje del control en modo de deslizamiento en R22 

      Carrero Candelas, Niliana Andreina; Costa Castelló, Ramon; Dormido Bencomo, Sebastián; Fossas Colet, Enric (2010-06-01)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      En este trabajo se presenta una herramienta interactiva en 2D para ilustrar los conceptos teoricos de control en modo de deslizamiento en sistemas dinamicos lineales. El objetivo final es facilitar a los alumnos la posibilidad ...

    • High performance control of a single-phase shunt active filter 

      Costa Castelló, Ramon; Griñó Cubero, Robert; Cardoner Parpal, Rafel; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers, 2007)
      Text en actes de congrés
      Accés obert
      Shunt active power filters are devices connected in parallel with nonlinear and reactive loads which are in charge of compensating these characteristics in order to assure the quality of the distribution network. This ...

    • High-Performance Control of a Single-Phase Shunt Active Filter 

      Costa Castelló, Ramon; Griñó Cubero, Robert; Cardoner Parpal, Rafel; Fossas Colet, Enric (2009-11)
      Article
      Accés obert
      Shunt active power filters are devices, connected in parallel with nonlinear and reactive loads, which are in charge of compensating these characteristics in order to assure the quality of the distribution network. This ...

    • Hybrid model of a double-fed induction machine and back-to-back converter 

      Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric (2005-01)
      Report de recerca
      Accés obert
      This report details the port interconnection of two subsystems: a power electronics subsystem (a back-to-back AC/AC converter (B2B), coupled to a phase of the power grid), and an electromechanical subsystem (a doubly-fed ...

    • Hybrid model of a doubly-fed induction machine and back-to-back converter 

      Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric (2005-03)
      Report de recerca
      Accés obert
      This report details the port interconnection of two subsystems: a power electronics subsystem (a back-to-back AC/AC converter (B2B), coupled to a phase of the power grid), and an electromechanical subsystem (a doubly-fed ...

    • Improving the robustness of Hamiltonian passive control 

      Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric (2006-03)
      Report de recerca
      Accés obert
      Interconnection and damping assignment passivity based control (IDA-PBC) is a well know technique for port Hamiltonian dissipative systems (PHDS). In this paper we point out the kind of problems that can appear in the ...

    • Interleaving quasi-sliding-mode control of parallel-connected buck-based inverters 

      Ramos Lara, Rafael Ramón; Biel Solé, Domingo; Fossas Colet, Enric; Guinjoan Gispert, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2008-11)
      Article
      Accés obert
      An interleaving fixed-switching-frequency quasi-sliding control algorithm based on the zero average dynamics approach is reported and applied to the design of a modular system of parallel-connected single-phase inverters. ...