Now showing items 1-20 of 28

    • 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 ...
    • 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)
      Article
      Open Access
      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 ...
    • 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)
      Article
      Open Access
      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. ...
    • 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)
      Article
      Open Access
      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 ...
    • 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)
      Article
      Open Access
      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 ...
    • Diseño e implementación de la etapa de supervisión de un inversor de 100kW conectado a red 

      Tarraso Martínez, Andrés (Universitat Politècnica de Catalunya, 2014-05-25)
      Bachelor thesis
      Restricted access - author's decision
      Este proyecto está dedicado al estudio de un convertidor conectado a la red eléctrica, donde se estudiará tanto la supervisión del autómata de control de conexión como diferentes técnicas de modulación utilizadas y el ...
    • 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 ...
    • 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)
      Article
      Open Access
      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 ...
    • 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)
      Article
      Open Access
      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 ...
    • 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 ...
    • 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)
      Article
      Open Access
      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 ...
    • Frequency selective damping of sub-synchronous oscillations for grid-forming power converters 

      Lai, Ngoc Bao; Marín Arévalo, Leonardo Vidal; Tarraso Martínez, Andrés; Gregory Baltas, Nicholas; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference lecture
      Restricted access - publisher's policy
      With the advent of renewable energy, stability of power system is becoming more and more crucial. Recently, grid-forming converter concept has attracted much attention from the industry and academia as a potential solution ...
    • Grid voltage harmonic damping method for SPC based power converters with multiple virtual admittance control 

      Tarraso Martínez, Andrés; Candela García, José Ignacio; Rocabert Delgado, Joan; Rodríguez Cortés, Pedro (2017)
      Conference report
      Open Access
      The appearance of harmonics in the grid voltage is an issue for the generation systems and grid connected consumers. This paper presents the basic control strategy to be implemented in Synchronous Power Control (SPC) based ...
    • 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 ...
    • Grid-forming power converters tuned through artificial intelligence to damp subsynchronous interactions in electrical grids 

      Gregory Baltas, Nicholas; Lai, Ngoc Bao; Marin, Leonardo; Tarraso Martínez, Andrés; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2020-05-18)
      Article
      Open Access
      The integration of non-synchronous generation units and energy storage through power electronics is introducing new challenges in power system dynamics. Specifically, the rotor angle stability has been identified as one ...
    • 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 ...
    • Influence of the ICFF decoupling technique on the stability of the current control loop of a grid-tied VSC 

      Marín Arévalo, Leonardo Vidal; Tarraso Martínez, Andrés; Candela García, José Ignacio; Rye, Rebecca; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      The control scheme of grid-tied converters is often implemented in the dq-frame due to simplicity of design. However, with this transformation, there exists an inherent cross-coupling term between the d-and q-channels which ...
    • LMI-based control design to enhance robustness of synchronous power controller 

      Lai, Ngoc Bao; Tarraso Martínez, Andrés; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Synchronous power controller (SPC) has emerged as a suitable technique to equip grid-connected inverters with grid supporting functionalities such as inertial emulation and frequency/voltage support by mimicking the behavior ...
    • Power quality services provided by virtually synchronous FACTS 

      Tarraso Martínez, Andrés; Lai, Ngoc Bao; Gregory Baltas, Nicholas; Rodríguez Cortés, Pedro (2019-08-27)
      Article
      Open Access
      The variable and unpredictable behavior of renewable energies impacts the performance of power systems negatively, threatening their stability and hindering their efficient operation. Flexible ac transmission systems (FACTS) ...