Recent Submissions

  • Virtual admittance PLL structure for grid-forming power converters in microgrids 

    Tarraso Martínez, Andrés; Candela García, José Ignacio; Lai, Ngoc Bao; Gregory Baltas, Nicholas; Rodríguez Cortés, Pedro (2020)
    Conference lecture
    Restricted access - publisher's policy
    Synchronization plays a fundamental role in connecting power electronic converters with the grid. Conventionally, the synchronous reference frame phase-locked loop (SRF-PLL) has been widely used to estimate the grid phase ...
  • A growing self-organising maps implementation for coherency identification in a power electronics dominated power system 

    Gregory Baltas, Nicholas; Lai, Ngoc Bao; Marín Arévalo, Leonardo Vidal; Tarraso Martínez, Andrés; Rodríguez Cortés, Pedro (2020)
    Conference lecture
    Restricted access - publisher's policy
    The presence of power electronics in today’s power systems strengthens due to the wider integration of renewable energy and energy storage systems. Subsequently, the dynamical response becomes harder to model and understand. ...
  • Active transformer functionalities including an energy storage system 

    Vidal León Romay, José David; Tarraso Martínez, Andrés; Candela, Jose Ignacio; Rodriguez, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference lecture
    Restricted access - publisher's policy
    This paper presents a series converter in an application with a Custom Power Active Transformer (CPAT) which is a power electronics integrated transformer providing services to the grid and load. The active transformer ...
  • Inertia emulation in power converters with communication delays 

    Lai, Ngoc Bao; Tarraso Martínez, Andrés; Gregory Baltas, Nicholas; Marín Arévalo, Leonardo Vidal; Rodríguez Cortés, Pedro (2020)
    Conference report
    Restricted access - publisher's policy
    Emulating inertia using power converter has been an effective way to provide additional inertia to power electronic dominated power systems. Currently, the control algorithms for emulating inertia have been proposed ...
  • Enhanced proportional-resonant (PR) controller with negative decoupling for weak grids 

    Tarraso Martínez, Andrés; Marín Arévalo, Leonardo Vidal; Lai, Ngoc Bao; Rodríguez Cortés, Pedro (2020)
    Conference lecture
    Restricted access - publisher's policy
    During the last decade the penetration of gridconnected RES systems has increased exponentially forcing power conversion industry to design new advanced controllers in order to comply with new requirements. The current ...
  • Small-signal model and analysis of a grid-forming power converter based on the synchronous power controller 

    Marín Arévalo, Leonardo Vidal; Tarraso Martínez, Andrés; Lai, Ngoc Bao; Gregory Baltas, Nicholas; Rodríguez Cortés, Pedro (2020)
    Conference lecture
    Restricted access - publisher's policy
    A grid-forming power converter based on the synchronous power controller (SPC) is a solution that through the flexible and adaptive emulation of the main functional blocks of a synchronous machine, allows to take advantage ...
  • Grid-forming power converter controller with artificial intelligence to attenuate inter-area modes 

    Gregory Baltas, Nicholas; Lai, Ngoc Bao; Marín Arévalo, Leonardo Vidal; Tarraso Martínez, Andrés; Rodríguez Cortés, Pedro (2020)
    Conference lecture
    Restricted access - publisher's policy
    Renewable energy and battery energy storage systems are affecting the dynamics of power systems mainly due to the interconnection through power electronics with the electric grid. Specifically, the low inertia characterizing ...
  • Voltage sensorless grid-forming power converters 

    Tarraso Martínez, Andrés; Lai, Ngoc Bao; Gregory Baltas, Nicholas; Rodríguez Cortés, Pedro (2020)
    Conference lecture
    Restricted access - publisher's policy
    During the years, synchronization systems in power converter control has been mainly used for estimating the phase angle and the magnitude of the grid voltage, this estimated information is usually used for droop control ...
  • Voltage sensorless control for grid-connected power converters based on state feedback and state observer 

    Lai, Ngoc Bao; Gregory Baltas, Nicholas; Marín Arévalo, Leonardo Vidal; Tarraso Martínez, Andrés; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Restricted access - publisher's policy
    Grid-connected power converters have been increasingly utilized to inject renewable energy into the grid. To reduce installation cost and the same time to increase system stability, this paper presents control design for ...
  • Synchronous fault compensator for voltage sensorless grid-following power converters 

    Tarraso Martínez, Andrés; Lai, Ngoc Bao; Rodríguez Cortés, Pedro (2021)
    Conference lecture
    Restricted access - publisher's policy
    During the last decade, the penetration of grid-connected RES systems has been in constant increase, forcing those systems interfaced to the electrical grid to improve and design new advanced controllers to maintain the ...
  • Efficient management of energy storage systems using competitive controller 

    Lai, Ngoc Bao; Tarraso Martínez, Andrés; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference lecture
    Restricted access - publisher's policy
    This paper proposes a management strategy based on a transactive mechanism to improve the efficiency of energy storage systems. The proposed control scheme relies on a non-cooperative strategy where each system is at the ...
  • Grid-following and grid-forming PV and wind turbines 

    Rodríguez Cortés, Pedro; Lai, Ngoc Bao (Academic Press, 2022-03-01)
    Part of book or chapter of book
    Restricted access - publisher's policy
    As penetration of photovoltaic (PV) and wind generation systems driven by grid-connected power converters monotonously increases, unusual interactions between innovative and legacy generation systems become more concerning, ...

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