Now showing items 1-20 of 52

    • A comparative study of methods for estimating virtual flux at the point of common coupling in grid connected voltage source converters with LCL filter 

      Fazlin Roslan, Nurul; Suul, Jon Are; Rocabert Delgado, Joan; Rodríguez Cortés, Pedro (2017-08-23)
      Article
      Restricted access - publisher's policy
      Grid synchronization based on Virtual Flux (VF) estimation allows for control of grid-connected power converter without depending on AC-voltage measurements. This is useful in voltage-sensor-less applications for reducing ...
    • A comparative study of methods for estimating virtual flux at the point of common coupling in grid connected voltage source converters with LCL filter 

      Roslan, Nurul Fazlin; Suul, Jon Are; Luna Alloza, Álvaro; Rocabert Delgado, Joan; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2016)
      Conference report
      Open Access
      Grid connected Voltage Source Converters (VSCs) with LCL filters usually have voltage measurements at the filter capacitors, while it can be important to control the active or reactive power injection at the grid-side of ...
    • A novel tunable multimodal bandpass filter 

      Contreras Lizarraga, Adrián Arturo; Pradell i Cara, Lluís; Ribó, M. (2011)
      Conference report
      Restricted access - publisher's policy
      This paper presents a novel uniplanar tunable bandpass filter. In this filter, each resonator can be reconfigured easily using PIN diodes or MEMS switches. Design equations are derived from a simple circuit model which ...
    • A three-phase hybrid filter for medium voltage applications using an H-bridge 

      Candela García, José Ignacio; Rodríguez Cortés, Pedro; Nisak, Khairul; Rauma, Kalle; Hermoso Costa, Juan Ramón; Etxeberria, Ion (2011)
      Conference report
      Restricted access - publisher's policy
      This paper presents a new solution for filtering current harmonics in three-phase thee-wire medium voltage networks. The hybrid filter topology presented in this paper is characterized by the use of an HBridge instead ...
    • An inverter dead-time feedforward compensation scheme for PMSM sensorless drive operation 

      Diallo, Demba; Arias Pujol, Antoni; Cathelin, Joël (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      In this paper, we propose a feedforward compensation scheme of the inverter dead-time to improve the performances of a sensorless Permanent Magnet Synchronous Machine (PMSM) drive at low speed and low load torque. Based ...
    • Analysis on capability of harmonic damping using active filter acting as resistive harmonic impedance 

      Hasan, Khurshid N Md; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2013)
      Conference report
      Restricted access - publisher's policy
      This paper presents the analysis of shunt active filter (SAF) in harmonic damping. SAF with voltage-based detection control act as an active damping and able to attenuate harmonic propagation throughout the power distribution ...
    • Aplicación de la tecnología IPEM en la realización de filtros EMI 

      Romani Buschman, Joan (Universitat Politècnica de Catalunya, 2015-06-30)
      Master thesis (pre-Bologna period)
      Open Access
      In this project will be studied the principles of the IPEM (Integrated Power Electronics Moduls) Technology and will be applied in the design of an electromagnetic interference (EMI) filter
    • Aportaciones al filtrado híbrido paralelo en redes trifásicas de cuatro hilos 

      Candela García, José Ignacio (Universitat Politècnica de Catalunya, 2009-09-08)
      Doctoral thesis
      Open Access
      Este trabajo se dedica a analizar los diferentes elementos y estructuras de los filtros híbridos paralelo, aplicados a redes trifásicas de potencia. Y dentro de este campo, se concentra en el desarrollo de filtros híbridos ...
    • Characterization of EMI filters based on metamaterials 

      Gil Galí, Ignacio; Fernández García, Raúl; Vives, Yolanda; Jauregui Tellería, Ricardo; Silva Martínez, Fernando (2009-06)
      Conference lecture
      Open Access
      This paper analyzes the behavior of EMI filters based on metamaterials. The filters are developed by means of sub-wavelength resonators and designed to have notch-type attenuation in the 2.45 GHz band. Two types of filters ...
    • Comparison between complementary split ring resonators and electromagnetic band-gap as EMI reduction structures 

      Gil Galí, Ignacio; Fernández García, Raúl (2010-05-10)
      Conference report
      Restricted access - publisher's policy
      In this work a comparison between complementary split ring resonators (CSRRs) and Electromagnetic Band-Gaps (EBGs) in terms of EMI filter performance is developed. Results show a similar EMI rejection level in both cases ...
    • Comparison of lossy filters and predistorted filters using novel software 

      Padilla Díaz, Alberto; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Ernst, Cristoph; Rius Casals, Juan Manuel; Tamayo Palau, José María; O'Callaghan Castellà, Juan Manuel (IEEE Microwave Theory and Techniques Society, 2010)
      Conference lecture
      Open Access
    • Control to reduce leading current in a Shunt Hybrid power filter 

      Lamich Arocas, Manuel; Balcells Sendra, Josep; González Díez, David; Gago Barrio, Javier; Jaen Fernandez, Carles; Castillo Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2009)
      Conference report
      Open Access
      The main drawback of Shunt Hybrid Filters is the need of leading current injection. This paper describes a strategy to reduce the leading current in a three phase four wires LC coupled parallel hybrid filter for harmonics ...
    • Current harmonics cancellation in three-phase four-wire systems by using a four-branch star filtering topology 

      Rodríguez Cortés, Pedro; Candela García, José Ignacio; Luna Alloza, Álvaro; Asiminoaei, Lucian; Teodorescu, R.; Blaabjerg, F. (2009-08)
      Article
      Open Access
      This paper presents a new solution for filtering current harmonics in three-phase four-wire networks. The original four-branch star (FBS) filter topology presented in this paper is characterized by a particular layout ...
    • Design and implementation of an interpolation filter for hearing-aid application 

      Llimós Muntal, Pere (Universitat Politècnica de Catalunya / Denmarks Tekniske Universitet (Technical University of Denmark), 2011)
      Master thesis (pre-Bologna period)
      Open Access
      Abstract – In this master thesis the design and implementation of an interpolation filter for hearing-aid applications will be discussed. The aim of the design will be to minimize the current consumption, hardware ...
    • Design of AC-DC power converters with LCL + tuned trap line filter using Si IGBT and SiC MOSFET modules 

      Piasecki, S.; Mir Cantarellas, Antonio; Rabkowski, J.; Rodríguez Cortés, Pedro (2013)
      Conference report
      Restricted access - publisher's policy
      This paper presents a method for improving the design procedure of AC-DC power converters for power generation applications. The proposed methodology is based on selection of the most convenient configuration, in terms ...
    • Design of the LCL+trap filter for the two-level VSC installed in a large-scale wave power plant 

      Mir Cantarellas, Antonio; Rakhshani, Elyas; Remón, D.; Rodríguez Cortés, Pedro (2013)
      Conference report
      Restricted access - publisher's policy
      This paper presents a methodology for designing the link passive filter of the power converters installed in a multi-megawatt wave power plant. Such filter is based on the superposition of both LCL and trap filter ...
    • Differential and common-mode filters based on metamaterial resonators 

      Gil Galí, Ignacio; Fernández García, Raúl (2013)
      Conference lecture
      Open Access
      Two different techniques based on metamaterials for mitigating both the differential and common-mode propagation in differential signaling are addressed. The proposed filters are implemented by means of complementary ...
    • Differential- and common-mode radiofrequency interference filters based on complementary split ring resonators: a conduction and radiation impact analysis 

      Gil Galí, Ignacio; Fernández García, Raúl (2015-01-22)
      Article
      Open Access
      This paper aims to analyse the design techniques of differential transmission lines loaded with metamaterials. Specifically, complementary split-ring resonators were etched on the ground plane of a microstrip transmission ...
    • Diseño de filtros de microondas de banda eliminada multimodales 

      Moreno Barreiro, Ignacio (Universitat Politècnica de Catalunya, 2013-12-18)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] This project presents the design of two new typologies of multimodal band-stop filters. Synthesis techniques are developed to obtain multimodal circuits to get a specific central frequency and a determinate ...
    • EMC filter based on complementary split-ring resonators for audio applications 

      Gil Galí, Ignacio; Fernández García, Raúl; Pous Solà, Marc; Silva Martínez, Fernando (2009-11)
      Conference lecture
      Open Access
      Filters based on complementary split-ring resonators present a large notch attenuation at the resonant frequency. An application of these very low cost filters to an audio system interfered by a mobile phone is presented ...