Exploració per autor "Blaabjerg, Frede"

Ara es mostren els items 6-25 de 25

    • Connection and disconnection transients for micro-grids under unbalance load condition 

      Rocabert Delgado, Joan; Azevedo, Gustavo M.S.; Candela García, José Ignacio; Luna Alloza, Álvaro; Blaabjerg, Frede; Rodríguez Cortés, Pedro (2014-03)
      Article
      Accés restringit per política de l'editorial
      In this paper the design and the implementation of a method oriented to carry out a safe and a stable intentional disconnection, and re-connection, of local micro-grids from the main distribution network under generic grid ...

    • Connection and disconnection transients for micro-grids under unbalance load condition 

      Rocabert Delgado, Joan; Azevedo, Gustavo M.S.; Candela García, José Ignacio; Blaabjerg, Frede; Rodríguez Cortés, Pedro (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The recent grid integration of Distributed Energy Resources (DER) possibility the formation of intentional islands in the case of a grid fault conditions. For such island formation is required an active agent capable of ...

    • Control of power converters in distributed generation applications under grid fault conditions 

      Rodríguez Cortés, Pedro; Luna Alloza, Álvaro; Muñoz Aguilar, Raúl Santiago; Córcoles López, Felipe; Teodorescu, Remus; Blaabjerg, Frede (IEEE, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The operation of distributed power generation systems under grid fault conditions is a key issue for the massive integration of renewable energy systems. Several studies have been conducted to improve the response of ...

    • Convertidores de frecuencia: retos y aplicaciones futuras 

      Blaabjerg, Frede; Villafafila Robles, Roberto; Thoegersen, Peter; Galceran Arellano, Samuel (Grupo Tecnipublicaciones, 2005-04)
      Article
      Accés restringit per política de l'editorial
      La tecnología de los convertidores de frecuencia está madura en cuanto a su uso en el control de motores, pero la rápida evolución que han sufrido estos equipos en los últimos diez años ha hecho que su aplicación efectiva ...

    • Current control method for distributed generation power generation plants under grid fault conditions 

      Rodríguez Cortés, Pedro; Luna Alloza, Álvaro; Hermoso Costa, Juan Ramón; Etxeberria Otadui, Ion; Teodorescu, Remus; Blaabjerg, Frede (IEEE Computer Society Publications, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The operation of distributed power generation systems under grid fault conditions is a key issue for the massive integration of renewable energy systems. Several studies have been conducted to improve the response of ...

    • Detection and mitigation of false data in cooperative dc microgrids with unknown constant power loads 

      Cecilia Piñol, Andreu; Sahoo, Subham; Dragicevic, Tomislav; Costa Castelló, Ramon; Blaabjerg, Frede (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Article
      Accés obert
      The rapid development and implementation of distributed control algorithms for DC microgrids has increased the vulnerability of this type of system to false data injection attacks, being one of the most prominent types of ...

    • Detection of partial demagnetization fault in PMSMs operating under nonstationary conditions 

      Wang, Chao; Delgado Prieto, Miquel; Romeral Martínez, José Luis; Chen, Zhe; Blaabjerg, Frede; Liu, Xiaoyan (2016-07-01)
      Article
      Accés obert
      Demagnetization fault detection of in-service permanent magnet synchronous machines (PMSMs) is a challenging task, because most PMSMs operate under nonstationary circumstances in industrial applications. A novel approach ...

    • Generalized multivariable grid-forming control design for power converters 

      Chen, Meng; Zhou, Dao; Tayyebi, Ali; Prieto Araujo, Eduardo; Dörfler, Florian; Blaabjerg, Frede (2022-03-22)
      Article
      Accés obert
      The grid-forming converter is an important unit in the future power system with more inverter-interfaced generators. However, improving its performance is still a key challenge. This paper proposes a generalized architecture ...

    • Grid congestion mitigation and battery degradation minimisation using model predictive control in PV-based microgrid 

      Raveendran Nair, Unnikrishnan; Sandelic, Monika; Sangwongwanich, Ariya; Dragicevic, Tomislav; Costa Castelló, Ramon; Blaabjerg, Frede (2021-06-01)
      Article
      Accés obert
      Increasing integration of photovoltaic (PV) system in electric grids cause congestion during peak power feed-in. Battery storage in PV systems increases self-consumption, for consumer's benefit. However with conventional ...

    • Grid voltage synchronization for distributed generation systems under grid fault conditions 

      Luna Alloza, Álvaro; Rocabert Delgado, Joan; Candela García, José Ignacio; Hermoso Costa, Juan Ramón; Teodorescu, Remus; Blaabjerg, Frede; Rodríguez Cortés, Pedro (2015-07-01)
      Article
      Accés obert
      The actual grid code requirements for the grid connection of distributed generation systems, mainly wind and photovoltaic (PV) systems, are becoming very demanding. The transmission system operators (TSOs) are especially ...

    • Model and control of the isolated multi-modular converter 

      Verdugo Retamal, Cristian Andrés; Candela García, José Ignacio; Blaabjerg, Frede; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      Multi-modular converters have proven to be one of the most suitable topology to be used in high and power applications. The modularity of these configurations offer several advantages, such as: high quality voltage, ...

    • Multilevel-clamped multilevel converters (MLC2) 

      Rodríguez Cortés, Pedro; Bellar, Maria Dias; Muñoz Aguilar, Raúl Santiago; Busquets Monge, Sergio; Blaabjerg, Frede (2012-03)
      Article
      Accés restringit per política de l'editorial
      This letter introduces a new series of multilevel (ML) converters based on the ML clamping concept. By applying this technique, a ML clamping unit (MCU) conveys additional levels for synthesizing the output waveforms ...

    • On addressing the security and stability issues due to false data injection attacks in DC microgrids an adaptive observer approach 

      Cecilia Piñol, Andreu; Sahoo, Subham; Dragicevic, Tomislav; Costa Castelló, Ramon; Blaabjerg, Frede (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Article
      Accés obert
      This paper proposes an observer-based methodology to detect and mitigate false data injection attacks in collaborative DC microgrids. The ability of observers to effectively detect such attacks is complicated by the presence ...

    • On power control of grid-forming converters: modeling, controllability, and full-state feedback design 

      Chen, Meng; Zhou, Dao; Tayyebi, Ali; Prieto Araujo, Eduardo; Dörfler, Florian; Blaabjerg, Frede (Institute of Electrical and Electronics Engineers (IEEE), 2024-01-01)
      Article
      Accés obert
      The popular single-input single-output control structures and classic design methods (e.g., root locus analysis) for the power control of grid-forming converters have limitations in applying to different line characteristics ...

    • Robust admittance shaping approach to grid current harmonic attenuation and resonance damping 

      Cóbreces Álvarez, Santiago; Wang, Xiongfei; Pérez Serrano, Jorge; Griñó Cubero, Robert; Blaabjerg, Frede (2018-09-01)
      Article
      Accés obert
      This paper presents a novel grid current control of a grid-connected voltage source converter with an LCL filter. The proposed control method uses an H 8 synthesis method to shape the input admittance of the converter, to ...

    • Thermal and efficiency analysis of five-level multi-level clamped multilevel converter considering grid codes 

      Ma, Ke; Muñoz Aguilar, Raúl Santiago; Rodríguez Cortés, Pedro; Blaabjerg, Frede (2013-06-05)
      Article
      Accés obert
      In this paper a five-level Multi-Clamped Multilevel Converter (5L-MLC2) topology is analyzed based on a typical grid integration application for renewable energy system. The loss and thermal distribution of the power ...

    • Thermal and efficiency analysis of five-level multi-level clamped multilevel converter considering grid codes 

      Ma, Ke; Muñoz Aguilar, Raúl Santiago; Rodríguez Cortés, Pedro; Blaabjerg, Frede (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper a five-level Multi-Clamped Multilevel Converter (5L-MLC2) topology is analyzed based on a typical grid integration application for renewable energy generation system. The loss and thermal distribution of the ...

    • Thermal and efficiency analysis of five-level multilevel-clamped multilevel converter considering grid codes 

      Ke, Ma; Muñoz Aguilar, Raúl Santiago; Rodríguez Cortés, Pedro; Blaabjerg, Frede (2014-02)
      Article
      Accés restringit per política de l'editorial
      In this paper, a five-level multilevel-clamped multilevel converter (5L-MLC2) topology is analyzed based on a typical grid integration application for renewable energy system. The loss and thermal distributions of the ...

    • Three-phase isolated multi-modular converter in renewable energy distribution systems 

      Verdugo Retamal, Cristian Andrés; Candela García, José Ignacio; Blaabjerg, Frede; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-25)
      Article
      Accés obert
      Multilevel converters are widely used in medium and high voltage applications. Their high performance, power quality, efficiency and smaller filters make them interesting for renewable energy distribution systems. In ...

    • Virtual-vector-based space vector pulse width modulation of the DC-AC multilevel-clamped multilevel converter (MLC2) 

      Rodríguez Cortés, Pedro; Muñoz Aguilar, Raúl Santiago; Busquets Monge, Sergio; D. Bellar, maria; Blaabjerg, Frede (IEEE, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work presents the development of the space vector pulse width modulation (SVPWM) of a new multi-level converter topology. First, the proposed converter and its natural space vector diagram are presented. Secondly, ...