Now showing items 1-12 of 194

    • Current-limited suboptimal sliding mode control for voltage-regulated synchronous buck converters 

      Ramos Lara, Rafael Ramón; Repecho del Corral, Víctor; Biel Solé, Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2022-11)
      Article
      Restricted access - publisher's policy
      This paper proposes a new sliding mode control based on a non-linear switching surface that provides a suboptimal current-limited start-up response in step-down converters. The main idea behind the design consists in ...
    • Zero speed sensorless scheme for permanent magnet synchronous machine under decoupled sliding-mode control 

      Repecho del Corral, Víctor; Biel Solé, Domingo; Dòria Cerezo, Arnau (Institute of Electrical and Electronics Engineers (IEEE), 2022-02)
      Article
      Open Access
      Position estimation at low/zero speed for permanent magnet synchronous machines is commonly achieved with the injection of high-frequency signals. This article presents a new sensorless scheme that accurately observe the ...
    • Digital control of multiphase series capacitor buck converter prototype for the powering of HL-LHC inner triplet magnets 

      Ibarra Basabe, Edorta; Arias Pujol, Antoni; Martínez de Alegría, Iñigo; Otero, Alberto; de Mallac, Louis (Institute of Electrical and Electronics Engineers (IEEE), 2022-10-01)
      Article
      Open Access
      A major upgrade will be conducted in the Large Hardon Collider (LHC) at CERN. This high-luminosity (HL) version of the LHC will increase the nominal luminosity by a factor of five. One of the key technologies of the HL-LHC ...
    • Comparison of first- and second-order sliding-mode controllers for a dc-dc dual active bridge 

      Dòria Cerezo, Arnau; Serra, Federico; Esteban, Francisco Daniel; Biel Solé, Domingo; Griñó Cubero, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2022-04-12)
      Article
      Open Access
      This paper compares four sliding-mode control strategies for a dual active bridge. The proposed control algorithms define different switching functions resulting in first-and second-order controllers, and using both ...
    • Sliding modes in a class of complex-valued nonlinear systems 

      Dòria Cerezo, Arnau; Olm Miras, Josep Maria; Biel Solé, Domingo; Fossas Colet, Enric (2021-07)
      Article
      Open Access
      A number of physical systems allow a complex-valued representation. This article extends the theory of sliding modes to a class of nonlinear systems described by complex-valued variables. Hence, states, parameters, control ...
    • A Multiple-Reference Complex-Based Controller for Power Converters 

      Serra, Federico; Dòria Cerezo, Arnau; Bodson, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2021-12-01)
      Article
      Open Access
      A multiple-reference complex-based controller is proposed for three-phase power converters feeding nonlinear and unbalanced loads. The control scheme incorporates a stable multiple-complex coefficient filter with bandwidths ...
    • Three-phase phase-locked loop algorithms based on sliding modes 

      Dòria Cerezo, Arnau; Repecho del Corral, Víctor; Biel Solé, Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Open Access
      This article proposes a family of phase-locked loop schemes based on sliding modes. The use of sliding mode algorithms ensures fast response and global stability. In particular, two new algorithms are presented, both based ...
    • Mechanical sensor fault-tolerant controller in pmsm drive: experimental evaluation of observers and signal injection for position estimation 

      Medjmadj, Slimane; Diallo, Demba; Arias Pujol, Antoni (2021-01-01)
      Article
      Restricted access - publisher's policy
      This paper presents the operating principle, results and conclusions for a FTC mechanical sensor that can guarantee continuity of operation on the whole speed range. This active FTC is based on analytical redundancy using ...
    • A behavioural dynamic model for constant power loads in single-phase AC systems 

      Griñó Cubero, Robert; Ortega, Romeo; Fridman, Emilia; Zhang, Jin; Mazenc, Frédéric (2021-09-01)
      Article
      Open Access
      Constant power loads (CPLs) in power systems have a destabilizing effect that gives rise to significant oscillations or to network collapse, motivating the development of new methods to analyse their effect in AC and DC ...
    • Herramientas para la docencia de control digital en grados de ingeniería 

      Lerma Macaya, Eneko; Costa Castelló, Ramon; Griñó Cubero, Robert; Sanchis, Carlos (Elsevier, 2021-04-06)
      Article
      Open Access
      En este trabajo se describen un conjunto de materiales pedagógicos que han sido desarrollados para dar soporte a la docencia del control digital. En particular, se presentan un conjunto de herramientas interactivas y el ...
    • An adaptive observer-based controller design for active damping of a DC network with a constant power load 

      Machado, Juan E.; Ortega, Romeo; Astolfi, Alessandro; Arocas Pérez, José; Pyrkin, Anton A.; Bobtsov, Alexey; Griñó Cubero, Robert (2021)
      Article
      Open Access
      This article explores a nonlinear, adaptive controller aimed at increasing the stability margin of a direct-current (dc), small-scale, electrical network containing an unknown constant power load (CPL). Due to its negative ...
    • Mechanical sensor fault-tolerant controller in PMSM drive: experimental evaluation of observers and signal injection for position estimation 

      Medjmadj, Slimane; Diallo, Demba; Arias Pujol, Antoni (2021-08-13)
      Article
      Restricted access - publisher's policy
      This paper presents the operating principle, results and conclusions for an FTC mechanical sensor that can guarantee continuity of operation on the whole speed range. This active FTC is based on analytical redundancy using ...