• A unified approach to explain contrary effects of hysteresis and smoothing in nonsmooth systems 

      Bonet Revés, Carles; Martínez-Seara Alonso, M. Teresa; Fossas Colet, Enric; Jeffrey, Mike R. (2017-09-01)
      Article
      Accés obert
      Piecewise smooth dynamical systems make use of discontinuities to model switching between regions of smooth evolution. This introduces an ambiguity in prescribing dynamics at the discontinuity: should the dynamics be given ...
    • Control design for multiphase synchronous buck converters based on exact constant resistive output impedance 

      Borrell Sanz, Angel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; García de Vicuña Muñoz de la Nava, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2013-11)
      Article
      Accés restringit per política de l'editorial
      This paper describes a control design methodology based on output impedance analysis for multiphase synchronous buck converters. This design leads to an optimal output voltage transient response. Two design alternatives ...
    • Control en modo deslizante con comparador con histéresis y frecuencia de conmutación fija 

      Repecho del Corral, Víctor; Biel Solé, Domingo; Fossas Colet, Enric (2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      En este artículo se presenta una estructura de control que permite operar a frecuencia de conmutación fija en modo deslizante. La implementación se realiza mediante un comparador de histéresis variable, cuyo valor se ajusta ...
    • Hysteresis-based design of dynamic reference trajectories to avoid saturation in controlled wind turbines 

      Tutivén Gálvez, Christian; Vidal Seguí, Yolanda; Acho Zuppa, Leonardo; Rodellar Benedé, José (2016)
      Article
      Accés obert
      The main objective of this paper is to design a dynamic reference trajectory based on hysteresis to avoid saturation in controlled wind turbines. Basically, the torque controller and pitch controller set-points are ...
    • Modeling of plastic hinges in seismic structural analysis using lusas 

      Xiao, Qizhi; Cole, Garry; Irving, David; Lyons, Paul (CIMNE, 2015)
      Comunicació de congrés
      Accés obert
      This paper gives an overview of the inelastic (or hysteresis) hinge (or joint) models implemented in LUSAS in recent years, which are a systematization and generalization of the typical models developed by researchers in ...
    • Simple low-cost hysteretic controller for multiphase synchronous buck converters 

      Borrell, Angel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; García de Vicuña Muñoz de la Nava, José Luis (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-06)
      Article
      Accés restringit per política de l'editorial
      This paper presents a novel hysteretic controller for a multiphase synchronous buck converter supplying low voltage, high current, and high slew-rate loads. The control scheme implements the main control functions for ...