Now showing items 1-12 of 12

    • A communication-less control scheme for a variable air-gap wireless energy transfer system using current source resonant converter 

      Ghahderijani, Mohammad Moradi; Castilla Fernández, Miguel; Rey López, Juan Manuel; Torres Martínez, Javier; Garnica López, Miguel Andrés (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper presents a robust control method for wireless energy transfer systems using current source resonant converter without any communication network. The proposed control strategy is valid even for systems with ...
    • Active damping based on Ackermann's formula for a three-phase voltage source inverter with LCL filter 

      Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Morales López, Javier; Momeneh, Arash; Miret Tomàs, Jaume; Torres Martínez, Javier (2015)
      Conference report
      Restricted access - publisher's policy
      This paper presents an active damping method in natural frame for a three-phase voltage source inverter with LCL filter. The proposed method is based on the pole placement technique via Ackermann's formula. This approach ...
    • Analysis of the effect of clock drifts on frequency regulation and power sharing in inverter-based islanded microgrids 

      Martí Colom, Pau; Torres Martínez, Javier; Rosero, Carlos Xavier; Velasco García, Manel; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2018-02-12)
      Article
      Open Access
      Local hardware clocks in physically distributed computation devices hardly ever agree because clocks drift apart and the drift can be different for each device. This paper analyses the effect that local clock drifts have ...
    • Estrategias de inyección de potencia reactiva en un inversor trifásico conectado a red 

      Torres Martínez, Javier (Universitat Politècnica de Catalunya, 2013)
      Master thesis (pre-Bologna period)
      Open Access
      Se presenta un control de potencia reactiva, para plantas de generación eléctrica conectadas a red a través de inversores trifásicos, capaz de tratar la problemática de los huecos de tensión. Las redes de distribución ...
    • Estudio comparativo de tres controles digitales para inversores fotovoltaicos trifásicos conectados a la red eléctrica comercial 

      Ortiz Santos, Cristian; Torres Martínez, Javier (Universitat Politècnica de Catalunya, 2011-06)
      Master thesis (pre-Bologna period)
      Open Access
    • Experimental study of clock drift impact over droop-free distributed control for industrial microgrids 

      Torres Martínez, Javier; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Ghahderijani, Mohammad Moradi; Rey López, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      It is well-know that in systems composed of several digital processors, clock signals of individual units differ from each other due to clock drifts. This paper investigates the effect of clock drifts from voltage source ...
    • Multi-layer active power and frequency control strategy for industrial microgrids 

      Rey, Juan Manuel; Solano, Javier; Torres Martínez, Javier; Miret Tomàs, Jaume; Ghahderijani, Mohammad Moradi; Castilla Fernández, Miguel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      Industrial microgrids require control strategies that guarantee high reliability and power quality. In this paper a multi-layer active power and frequency control strategy for industrial microgrids is presented. It is ...
    • On the optimal reactive power control for grid-connected photovoltaic distributed generation systems 

      Velasco García, Manel; Martí Colom, Pau; Torres Martínez, Javier; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2015)
      Conference lecture
      Restricted access - publisher's policy
      The increasing deployment of distributed generation (DG) such as photovoltaic panels (PV) connected to low-voltage (LV) grids is becoming a common trend in urban areas. The advances of information and communication technology ...
    • Performance analysis of frequency restoration for parallel voltage source inverters connected with a realistic communication channel 

      Martí Colom, Pau; Velasco García, Manel; Martín Rull, Enric Xavier; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Torres Martínez, Javier (2015)
      Conference lecture
      Restricted access - publisher's policy
      A topic of interest within the microgrid (MG) community is to achieve accurate sharing of active and reactive power among voltage source inverters (VSI) working in parallel while keeping the voltage frequency and amplitude ...
    • Reactive power control for loss minimization in low-voltage distributed generation systems 

      Martí Colom, Pau; Velasco García, Manel; Torres Martínez, Javier; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2016)
      Conference report
      Restricted access - publisher's policy
      Dispersed small distributed generation (DG) systems in low-voltage (LV) grids pose diverse challenges for successful grid operation. The main one is to guarantee power quality by ensuring that voltages along all the feeders ...
    • Sliding-mode control for a three-phase shunt active power filter in natural frame 

      Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Morales López, Javier; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Torres Martínez, Javier (2015)
      Conference report
      Restricted access - publisher's policy
      This paper presents an improved variable hysteresis-band current-control in natural frame for a three-phase shunt active power filter. The proposed control algorithm is based on three decoupled sliding-mode controllers ...
    • Voltage sag mitigation in a PV-based industrial microgrid during grid faults 

      Ghahderijani, Mohammad Moradi; Castilla Fernández, Miguel; García de Vicuña Muñoz de la Nava, José Luis; Camacho Santiago, Antonio; Torres Martínez, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      The growing interests in industrial microgrid and its high power rating, have made it as a good candidate for voltage support purposes. The aim of this paper is to present a reactive current injection control strategy for ...