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  • External inertia emulation controller for grid-following power converter 

    Lai, Ngoc Bao; Tarraso Martínez, Andrés; Gregory Baltas, Nicholas; Marín Arévalo, Leonardo Vidal; Rodríguez Cortés, Pedro (2021)
    Artículo
    Acceso abierto
    The advent of renewable energy has posed difficulties in the operation of power systems whose net inertia is becoming critically low. To face such challenges, grid-forming power has been one of the potential solutions ...

  • Multi-rotor virtual machine for grid-forming converter to damp sub-synchronous resonances 

    Lai, Ngoc Bao; Gregory Baltas, Nicholas; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Artículo
    Acceso abierto
    Grid-forming power converters (GFMC) have been widely adopted in power systems as an attractive solution against the challenges imposed by the ever-increasing penetration of renewables. Despite its versatility, GFMC is ...

  • Enhanced performance controller for high power wind converters connected to weak grids 

    Shahparasti, Mahdi; Catalan, Pedro; García Quintanilla, José Ignacio; Candela García, José Ignacio; Tarraso Martínez, Andrés; Luna Alloza, Álvaro (2020-04-02)
    Artículo
    Acceso abierto
    This study proposes a control scheme for high power grid-connected wind power converters, which is oriented to enhance their performance when connected to weak grids with low short circuit ratio. The proposed controller ...

  • Design of controller for virtual synchronous power plant 

    Tarraso Martínez, Andrés; Lai, Ngoc Bao; Verdugo Retamal, Cristian Andrés; Candela García, José Ignacio; Rodriguez, Pedro (2021-01-01)
    Artículo
    Acceso abierto
    The increasing participation of renewables in power systems has forced system operators to strengthen grid codes requiring renewable power plants (RPPs) to provide fast frequency support such as inertia response and power ...

  • Quadrature voltage compensation in the isolated multi-modular converter 

    Verdugo Retamal, Cristian Andrés; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2021-02-01)
    Artículo
    Acceso abierto
    Series connections of modules in cascaded multilevel converters are prone to power imbalances due to voltage differences on their DC side. When modules are connected to direct current (DC) sources, such as photovoltaic ...

  • Control and validation of a reinforced power conversion system for upcoming bioelectrochemical power to gas stations 

    Shahparasti, Mahdi; Rajaei, Amirhossein; Tarraso Martínez, Andrés; Vidal León Romay, José David; Luna, Alvaro (2021-06-18)
    Artículo
    Acceso abierto
    This paper presents a proposal for potential bioelectrochemical power to gas stations. It consists of a two-level voltage source converter interfacing the electrical grid on the AC side and an electromethanogenesis based ...

  • AI-based damping of electromechanical oscillations by using grid-connected converter 

    Gregory Baltas, Nicholas; Lai, Ngoc Bao; Tarraso Martínez, Andrés; Marín Arévalo, Leonardo Vidal; Blaabjerg, Frede; Rodríguez Cortés, Pedro (2021-03-05)
    Artículo
    Acceso abierto
    The proliferation of grid-connected converter interfaced energy sources in Smart Grids, enhance sustainability and efficiency as well as minimizing power losses and costs. However, concerns arise regarding the stability ...

  • Voltage sensorless control scheme based on extended-state estimator for a grid-connected inverter 

    Lai, Ngoc Bao; Kim, Kyeong-Hwa; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2020-06)
    Artículo
    Acceso abierto
    This article presents a robust voltage sensorless control scheme to eliminate the need of line-voltage sensors in an LCL-filtered grid-connected inverter system. The proposed control scheme is based on an extended-state ...

  • Active power limiter for static synchronous generators in renewable applications 

    Abdollahi, Mostafa; Candela García, José Ignacio; Rocabert Delgado, Joan; Atef Abbas Elsaharty, Mohamed (Institute of Electrical and Electronics Engineers (IEEE), 2020-08-28)
    Artículo
    Acceso abierto
    Virtual Synchronous Generators (VSGs) are an interesting control approach for the connection of renewable energies to the electrical grid through power converters. These power devices have shown their ability to enable ...

  • Electromechanical design of synchronous power controller in grid integration of renewable power converters to support dynamic stability 

    Abdollahi, Mostafa; Candela García, José Ignacio; Tarraso Martínez, Andrés; Atef Abbas Elsaharty, Mohamed; Rakhshani, Elyas (2021-04-10)
    Artículo
    Acceso abierto
    Nowadays, modern power converters installed in renewable power plants can provide flexible electromechanical characteristics that rely on the developed control technologies such as Synchronous Power Controller (SPC). Since ...

  • Centralized synchronous controller based on load angle regulation for photovoltaic power plants 

    Verdugo Retamal, Cristian Andrés; Tarraso Martínez, Andrés; Candela García, José Ignacio; Rocabert Delgado, Joan; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2021-02)
    Artículo
    Acceso abierto
    The integration of renewable energies based on photovoltaic power plants (PVPPs) is increasing exponentially fast. In consequence, stability problems associated with the lack of inertia are becoming a serious concern. ...

  • Energy balancing with wide range of operation in the isolated multi-modular converter 

    Verdugo Retamal, Cristian Andrés; Candela García, José Ignacio; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2020-05-04)
    Artículo
    Acceso abierto
    The series-connection of modules in multilevel converters are prone to energy imbalances in the dc capacitor due to the differences between the power absorbed and consumed. In renewable energy applications where the primary ...

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