Now showing items 1-20 of 40

  • A computer model for teaching the dynamic behavior of AC contactors 

    Riba Ruiz, Jordi-Roger; García Espinosa, Antonio; Romeral Martínez, José Luis (2010-05)
    Article
    Open Access
    AC-powered contactors are extensively used in industry in applications such as automatic electrical devices, motor starters, and heaters. In this work, a practical session that allows students to model and simulate the ...
  • A cyclo-dissipativity framework for power factor compensation of electrical circuits 

    García Canseco, Eloísa; Griñó Cubero, Robert; Ortega, Romeo; Salichs Vivancos, Miguel; Stankovic, Alexander (2005-10)
    Conference report
    Open Access
    The purpose of this paper is to bring the attention of the control community some of the aspects of the practically important, and mathematically challenging, power factor compensation problem. Our main contribution is ...
  • A local stability condition for dc grids with constant power loads 

    Arocas Pérez, José; Griñó Cubero, Robert (2017-07-01)
    Article
    Open Access
    Currently, there are an increasing number of power electronics converters in electrical grids, performing the most diverse tasks, but most of them, work as constant power loads (CPLs). This work presents a sufficient ...
  • A modified partial power structure for quasi Z-source converter to improve voltage gain and power rating 

    Honarmand, Shahin; Rajaei, Amirhossein; Shahparasti, Mahdi; Luna Alloza, Álvaro; Pouresmaeil, Edris (2019-06-01)
    Article
    Open Access
    Employing partial power processing (PPP) technique for quasi Z-source converter (QZSC) a new structure of the converter is presented. Using PPP technique although eliminates electrical insolation, but permits reducing ...
  • A regenerative active clamp circuit for DC/AC converters with high-frequency isolation in photovoltaic systems 

    Rocabert Delgado, Joan; Mata Dumenjó, Montserrat; Bordonau Farrerons, José; Beristain Gimenez, Jose Antonio (2004-11-15)
    Conference lecture
    Open Access
    DC/AC converters with high-frequency isolation and bidirectional power flow are extensively used in photovoltaic power systems and small isolated power converters at low and medium power ranges. The main disadvantages ...
  • A system approach on power distribution supervisory control catalog 

    Delgado Penin, José Antonio; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 1982)
    Conference report
    Open Access
    The electrical energy distribution networks need remote control systems that are centralised and integrated as far as the functions they can develop are concerned. The need for a thinking unit at the line head for managing ...
  • Biofilm growth monitoring 

    Izquierdo Moles, Josep (Universitat Politècnica de Catalunya, 2019-05)
    Bachelor thesis
    Open Access
    Design and develpment a "original" system and low cost to measure the variations in the oscillation frequency and damping in the point of oscillation when bacteria grow in the surface of a quartz crystal.
  • CATRENE-PANAMA WP1: integrated PA Milestone M1.3 technology, approach & system choice for home networking 

    Dufis, Cédric Yvan; Mateo Peña, Diego; Bofill, Adrià; González Jiménez, José Luis (2009-10-30)
    External research report
    Open Access
  • Centraleta modular i escalable pel control de calderes, calefacció i aigua calenta sanitària 

    Balaguer Vergé, Miquel (Universitat Politècnica de Catalunya, 2012-06-25)
    Master thesis (pre-Bologna period)
    Open Access
    En l’actualitat, els sistemes de control per a circuits de calderes, radiadors i aigua calenta sanitària tenen un inconvenient a l’hora d’instal·lar-los. Aquests sistemes de control, anomenats centraletes de regulació, ...
  • Circuitos eléctricos : problemas 

    Alabern Morera, Francesc Xavier; Font Piera, Antonio (Edicions UPC, 2006)
    Book
    Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC users
    La obra se ha estructurado en torno a dos grandes bloques, correspondientes al comportamiento de circuitos eléctricos en régimen permanente y su estudio en régimen dinámico o transitorio. La resolución de los circuitos ...
  • Circuits elèctrics 

    Boix Aragonès, Oriol; Rull Duran, Joan (Edicions UPC, 2001)
    Book
    Open Access
    Presentem un text de teoria de circuits pensat com a eina d'estudi per a estudiants universitaris de titulacions no elèctriques. El contingut comprèn des de circuits en corrent continu fins a sistemes trifàsics en règim ...
  • Closed-loop controller for eliminating the contact bounce in DC core contactors 

    García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Cusidó Roura, Jordi; Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis (2010-09)
    Article
    Open Access
    The undesirable phenomenon of the contact bounce causes severe erosion of the contacts and, as a consequence, their electrical life and reliability are greatly reduced. On the other hand, the bounce of the armature can ...
  • Comments on "On resistor-induced thermal noise in linear circuits" 

    Vargas Drechsler, Manuel; Pallàs Areny, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2002-04-30)
    Working paper
    Open Access
    Correspondència referida a l'article de R. Giannetti, publicat ibid. vol.49 p.87-88
  • Corrector del factor de potencia mediante convertidor boost multifase 

    Barriocanal Escobar, Jordi (Universitat Politècnica de Catalunya, 2009-06)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    Las fuentes de alimentación tradicionales provocan una clara disminución del factor de potencia. Es necesario encontrar un circuito que pase la corr iente alterna a corriente continua, con un ...
  • Desenvolupament d'un programa per a l'estudi sobre el disseny del circuit Steinmetz i la seva influència en les instal·lacions elèctriques 

    Riera Galceran, Sara (Universitat Politècnica de Catalunya, 2011-02)
    Master thesis (pre-Bologna period)
    Open Access
    Els sistemes elèctrics de tracció d’alta velocitat són en general càrregues monofàsiques, no lineals, fluctuants en el temps i que, en connectar-los a la xarxa trifàsica, generen desequilibris en els corrents consumits ...
  • Design and implemantation of a resonant gate-drive circuit with capability of high frequency and high efficiency operation 

    Rius Rueda, Armand (Universitat Politècnica de Catalunya / Nagaoka University of Technology, 2011)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    This document deals with the design and implementation of a resonant gate-drive circuit capable of high frequency and high efficiency operation. This gate-drive circuit is characterized by a resonant inductor connected in ...
  • Display de 7 segmentos 

    Corbalán Fuertes, Montserrat (2011-03-08)
    Audiovisual
    Open Access
  • Electric systems 

    Riba Ruiz, Jordi-Roger (EUETII, UPC, 2010-09-15)
    Book
    Open Access
  • Energía y parámetros en generadores de impulso de corriente para 100 kA 

    Montañá Puig, Juan (2001)
    Conference lecture
    Restricted access - author's decision
    En los equipos para ensayos de impulso de corriente, un parámetro fundamental para el dimensionamiento de estos es la energía aportada al ESE (Equipo Sometido a Ensayo) la cual tendrá que ser previamente almacenada en ...
  • Exploring the voltage divider approach for accurate memristor state tuning 

    Vourkas, Ioannis; Gomez, Jorge; Abusleme, Angel; Vasileiadis, Nikolaos; Sirakoulis, Georgios; Rubio Sola, Jose Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Restricted access - publisher's policy
    The maximum exploitation of the favorable properties and the analog nature of memristor technology in future nonvolatile resistive memories, requires accurate multilevel programming. In this direction, we explore the voltage ...