Now showing items 1-9 of 9

  • Block disabling characterization and improvements in CMPs operating at ultra-low voltages 

    Ferrerón, Alexandra; Suárez Gracia, Darío; Alastruey, Jesús; Monreal Arnal, Teresa; Viñals Yufera, Víctor (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Open Access
    Power density has become the limiting factor in technology scaling as power budget restricts the amount of hardware that can be active at the same time. Reducing supply voltage to ultra-low voltage ranges close to the ...
  • Distributed reactive power control methods to avoid voltage rise in grid-connected photovoltaic power generation systems 

    Martí Colom, Pau; Velasco García, Manel; Fuertes Armengol, José Mª; Camacho Santiago, Antonio; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2013)
    Conference report
    Restricted access - publisher's policy
    A high density of grid-connected photovoltaic (PV) power generation systems is expected to occur in urban areas. The connection of distributed generation (DG) may cause serious problems in the distribution system such ...
  • Experimental implementation of a voltage control for a Multiterminal VSC-HVDC offshore transmission system 

    Egea Àlvarez, Agustí; Bianchi, Fernando Daniel; Junyent Ferré, Adrià; Gross, Gabriel Igor; Gomis Bellmunt, Oriol (2012)
    Conference report
    Restricted access - publisher's policy
  • MCU controlled DC-DC Buck/Boost converter for supercapacitors 

    Querol Borràs, Jorge (Universitat Politècnica de CatalunyaKTH Royal Institute of Technology, 2012-07-02)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] This work is focused on DC to DC conversion, what is a crucial function to enable the use of supercapacitors for energy storage. A theoretical study and comparison of methods, algorithms and techniques for software ...
  • Multi input sliding mode control of an autonomous fuel cell-supercapacitor hybrid system 

    Moré, Jerónimo José; Puleston, Paul; Kunusch, Cristian; Fossas Colet, Enric (2012)
    Conference report
    Restricted access - publisher's policy
    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 ...
  • Multilevel two quadrant DC/DC converter for regenerative braking in mobile applications 

    Massot Campos, Miquel; Montesinos Miracle, Daniel; Galcerán Arellano, Samuel; Rufer, Alfred (2011)
    Conference lecture
    Restricted access - publisher's policy
    In this paper different cascaded and multilevel topologies are compared for regenerative braking systems using supercapacitors (SC). It shows that the multilevel buck derived topology can beneficiate from both reduced ...
  • Overview of power processing structures for embedding energy storage in PV power converters 

    Citro, Costantino; Luna Alloza, Álvaro; Rocabert Delgado, Joan; Muñoz Aguilar, Raúl Santiago; Candela García, José Ignacio; Rodríguez Cortés, Pedro (IEEE Computer Society Publications, 2011)
    Conference report
    Restricted access - publisher's policy
    The level of penetration of grid-connected photovoltaic (PV) systems has grown very quickly in recent years. Nonetheless, network stresses related to the recurrent voltage and frequency oscillations caused by their irregular ...
  • Sliding-mode control for a three-phase unity power factor rectifier operating at fixed switching frequency 

    Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Morales Lopez, Javier; Castilla Fernández, Miguel; Matas Alcalá, José (2015-02-11)
    Article
    Open Access
    This paper presents an improved variable hysteresisband current-control in natural frame for a three-phase unity power rectifier. The proposed control algorithm is based on three decoupled sliding-mode controllers combined ...
  • Two Families of Sliding Mode Controllers for a Doubly-Fed Induction Generator in a Isolated Generation System 

    Galindo Orozco, René; Cotoregea Pfeifer, María; Biel Solé, Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2007-05)
    Article
    Open Access
    En este artículo se considera el control en modo de deslizamiento (SMC1) de un generador de inducción doblemente alimentado (DFIG) que suministra a una carga RL aislada, en un sistema de generación de velocidadvariable/f ...