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Ara es mostren els items 64-83 de 110

    • 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. ...

    • Iterative approximation of unstable limit cycles for a class of Abel equations 

      Fossas Colet, Enric; Olm Miras, Josep Maria; Sira-Ramírez, Hebertt (2007)
      Report de recerca
      Accés obert
      This report considers the analytical approximation of unstable limit cycles that may appear in Abel equations written in the normal form. The procedure uses an iterative approach that takes advantage of the contraction ...

    • Leonhard Euler: quatre lIiçons escollides 

      Fossas Colet, Enric (2014-01-31)
      Altres
      Accés obert
      L'FME dedica el curs acadèmic 2006-2007 a la figura del matemàtic suís Leonhard Euler, una de les ments més importants de la història, comparable a Gauss o Arquímedes. La lliçó inaugural va anar a càrrec d'Enric Fossas, ...

    • Leonhard Euler: quatre lliçons escollides 

      Fossas Colet, Enric (Societat Catalana de Matemàtiques, 2007-12)
      Article
      Accés obert
      Aprofitant la commemoració durant el curs 2006-2007 del tricentenari del naixement d’Euler, es presenten quatre temes d’entre els seus treballs: els logaritmes, la fórmula d’Euler, el problema de Basilea i el disseny d’un ...

    • Llicó inaugural : Leonhard Euler 

      Fossas Colet, Enric (2006-09-20)
      Audiovisual
      Accés obert
      L'FME dedica el curs acadèmic 2006-2007 a la figura del matemàtic suís Leonhard Euler, una de les ments més importants de la història, comparable a Gauss o Arquímedes. La lliçó inaugural va anar a càrrec d'Enric Fossas, ...

    • Modeling a coupled-inductor boost converter in the complementarity framework 

      Carrero Candelas, Niliana Andreina; Batlle Arnau, Carles; Fossas Colet, Enric (2013)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      We consider the modeling of switching circuits, consisting of passive elements, independent sources, which are subject both to externally induced switches (time events) and to state events. We focus on the use of the ...

    • Modelling and nonlinear control of a magnetically coupled multiport DC-DC converter for automotive applications 

      Repecho del Corral, Víctor; Olm Miras, Josep Maria; Griñó Cubero, Robert; Dòria Cerezo, Arnau; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2021-04-21)
      Article
      Accés obert
      This work presents a nonlinear control strategy for a magnetically coupled multiport dc-dc converter aimed at automotive applications. First, a behavioural dynamic model, based on averaging the power flowing among the ...

    • Multi input sliding mode control of an autonomous fuel cell-supercapacitor hybrid system 

      Moré, Jerónimo José; Puleston, Paul; Kunusch, Cristian; Fossas Colet, Enric (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents the design of a sliding mode control strategy through an input decoupling of an hybrid fuel cell based system. The hybrid system is composed by a fuel cell stack and a Supercapacitors module, connected ...

    • 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 ...

    • On preserving passivity in sampled-data linear systems 

      Costa Castelló, Ramon; Fossas Colet, Enric (2005-03)
      Report de recerca
      Accés obert
      Passivity is a well know phenomenon in several engineering areas. Due to its interesting properties, it is used in several areas of control engineering. Generally, this property is lost under direct discretization. In this ...

    • Optimising the extraction rate of a non-durable non-renewable resource in a monopolistic market: a mathematical programming approach 

      Corominas Subias, Albert; Fossas Colet, Enric (Springer, 2015-09-17)
      Article
      Accés obert
      We assume a monopolistic market for a non-durable non-renewable resource such as crude oil, phosphates or fossil water. Stating the problem of obtaining optimal policies on extraction and pricing of the resource as a ...

    • Reply to "Concerning "Odd-harmonic digital repetitive control of a single-phase current active filter"" 

      Costa Castelló, Ramon; Griñó Cubero, Robert; Fossas Colet, Enric (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-07-31)
      Article
      Accés obert
      The main objective of this correspondence is to clarify several comments made by K. Zhou et al. (see ibid., vol.20, no.2, p.511-3, Mar. 2005) about our original work (see ibid., vol.19, no.4, p.1060-8, Jul. 2004) without ...

    • Report on theorerical results of power generation and conversion 

      Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric (2006-04)
      Report de recerca
      Accés obert
      Experimental results of a new controller able to support bidirectional power flow in a full-bridge rectifier with boost-like topology are obtained. The controller is computed using port Hamiltonian passivity techniques for ...

    • Resonant control of a single-phase full-bridge unity power factor boost rectifier 

      Costa Castelló, Ramon; Griñó Cubero, Robert; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers, 2007)
      Text en actes de congrés
      Accés obert
      This work studies the dynamics of a single-phase full-bridge unity power factor boost AC-DC converter and develops a linear cascade resonant controller in order to meet two control objectives: to regulate the mean value ...

    • Robust controller for a full-bridge rectifier using the IDA approach and GSSA modeling 

      Gaviria, César; Fossas Colet, Enric; Griñó Cubero, Robert (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-03)
      Article
      Accés obert
      An interconnection-and-damping assignment passivity-based control (IDA-PBC) for a full-bridge rectifier is presented in this paper. The closed-loop system performance fulfils unity power factor in the ac mains and output ...

    • Robust Exact Differentiation via Sliding Mode Technique applied to a Fixed-Frequency Quasi-Sliding Control Algorithm 

      Biel Solé, Domingo; Fossas Colet, Enric; Meza Benavides, Carlos; Muñoz Aguilar, Raúl Santiago (2008-01)
      Report de recerca
      Accés obert
      This paper presents the design of a DC-AC power converter controller that bears the same benefits of a sliding mode controller but with the advantage of a fixed-frequency control signal. The controller is based on the ...

    • Robust Hamiltonian passive control for higher relative degree outpus 

      Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric (2006-09)
      Report de recerca
      Accés obert
      We present an improvement of the well-know Interconnection and Damping Assignment-Passivity-based Control (IDA-PBC) technique. The IDA-PBC method is based on the Port –controlled Hamiltonian Systems description and requires ...

    • Robust sliding mode control of a DC/DC Boost converter with switching frequency regulation 

      Repecho del Corral, Víctor; Biel Solé, Domingo; Olm Miras, Josep Maria; Fossas Colet, Enric (2018-01-01)
      Article
      Accés restringit per política de l'editorial
      This paper presents the design of a hysteresis band controller to regulate the switching frequency in a sliding mode controlled nonlinear Boost power converter. The proposed architecture relies on a piecewise linear modeling ...

    • Robust step-up DC/AC conversion with a full-bridge non-inverting buck-boost 

      Biel Solé, Domingo; Fossas Colet, Enric; Olm Miras, Josep Maria (Institute of Electrical and Electronics Engineers, 2007)
      Text en actes de congrés
      Accés obert
      The substitution of the original switches by a full-bridge in a Non-Inverting Buck-Boost converter results in an inverter capable of performing step-down and step-up tasks under sliding mode control. Furthermore, semi-infinite ...

    • Sistemes de Control amb no Linealitats Estàtiques Emprant MATLAB / Simulink 

      Fossas Colet, Enric; Costa Castelló, Ramon; López-Doriga Guerra, Sergio (Universitat Politècnica de Catalunya, 2011)
      Apunts
      Accés obert