Now showing items 13-24 of 43

    • Communication-aware consensus for frequency restoration in islanded microgrids 

      Martí Colom, Pau; Velasco García, Manel; Martín Rull, Enric Xavier; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Camacho Santiago, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
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      MicroGrids (MGs) include spatially distributed generation (DG) systems and loads that may require operating autonomously in islanded mode. The operation of islanded MGs can benefit from consensus theory and practice, ...
    • Transient analysis of PV-based industrial microgrids between grid-connected and islanded modes 

      Moradi Ghahderijani, Mohammad; Castilla Fernández, Miguel; Momeneh, Arash; Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis (2016)
      Conference report
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      This paper presents a networked control scheme for a photovoltaic-based industrial microgrid to adaptably operate in both grid-connected and islanded modes, and even to transfer smoothly between these two modes. The ...
    • 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
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      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 ...
    • A general MILP model for the sizing of islanded/grid-connected microgrids 

      Alabert Aldana, Aniol; Somoza Tornos, Ana; Hoz Casas, Jordi de la; Graells Sobré, Moisès (2016)
      Conference lecture
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      Recently, energy systems have experienced a change of paradigm, from a large-scale centr alized approach to the in-situ exploitation of renewabl e sources. Special atte ntion has been paid to microgrids, a particular case ...
    • 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
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      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
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      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 ...
    • 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
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      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 ...
    • 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
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      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 ...
    • Architecture and design of an inductive contactless energy transfer system with two mobile loads for residential applications 

      Momeneh, Arash; Castilla Fernández, Miguel; van der Pijl, Fredrik F.A.; Guzmán Solà, Ramon; Morales López, Javier (2015)
      Conference lecture
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      Inductive contactless energy transfer systems with multiple mobile loads are very complex systems. Main challenges of these systems are to propose a suitable architecture and to design their power components. These ...
    • On the modeling of switched capacitor converters with multiple outputs 

      Delos, Julia; Lopez, Toni; Alarcón Gallo, Eduardo; Hendrix, Marcel A.M. (2014)
      Conference report
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      The internal nodes of switched capacitor converters can be used to provide multiple pulsed width modulated voltages that, in combination with filter inductors, can extend the available dc outputs. Such converter architecture ...
    • Nonlinear dynamics in a graphene nanostructured device for energy harvesting 

      El Aroudi, Abdelali; Lopez Suarez, Miquel; Alarcón Gallo, Eduardo; Rurali, Riccardo; Abadal, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
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      Nonlinearities have been shown to play an important role in increasing the extracted energy of energy harvesting devices at the macro and micro scales. Vibration-based energy harvesting on the nano scale has also received ...
    • Mixing local and distributed reactive power control for balancing inverters' effort in grid-connected photovoltaic systems 

      Velasco García, Manel; Martí Colom, Pau; Camacho Santiago, Antonio; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2013)
      Conference report
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      Reactive power control methods have been proven to be a successful technique for maintaining voltages of photovoltaic (PV) distributed generators (DG) within the admissible limits without enforcing to reduce the production ...