Exploració per tema "Distributed generation of electric power"

Ara es mostren els items 1-20 de 54

    • A communication-assisted protection scheme for direct-current distribution networks 

      Monadi, Mehdi; Zamani, M. Amin; Koch-Ciobotaru, Cosmin; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2016-05-27)
      Article
      Accés obert
      One of the major issues associated with the implementation of direct-current distribution systems is the design of a proper protection scheme. The fault current characteristics in direct-current distribution systems are ...

    • A control strategy for DC-link voltage control containing PV generation and energy storage — An intelligent approach 

      Rouzbehi, Kumars; Miranian, Arash; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, DC-link voltage control in DC microgrids with photovoltaic (PV) generation and battery, is addressed based on an intelligent approach. The proposed strategy is based on the modeling of the power interface, ...

    • A control technique for integration of DG units to the electrical networks 

      Pouresmaeil, Edris; Miguel Espinar, Carlos; Massot Campos, Miquel; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2013-07)
      Article
      Accés restringit per política de l'editorial
      This paper deals with a multiobjective control technique for integration of distributed generation (DG) resources to the electrical power network. The proposed strategy provides compensation for active, reactive, and ...

    • A protection strategy for fault detection and location for multi-terminal MVDC distribution systems with renewable energy systems 

      Monadi, Mehdi; Koch-Ciobotaru, Cosmin; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A fault location method and a fault clearance strategy are presented in this paper for medium voltage dc (MVDC) distribution system. MVDC systems are applicable for connection between microgrids (MGs) and integration of ...

    • A Solid State Transformer model for power flow calculations 

      Guerra Sánchez, Luis Gerardo; Martínez Velasco, Juan Antonio (2017-07-01)
      Article
      Accés obert
      This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional ...

    • Active and reactive power strategies with peak current limitation for distributed generation inverters during unbalanced grid faults 

      Camacho Santiago, Antonio; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Borrell Sanz, Angel; García de Vicuña Muñoz de la Nava, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2015-03-01)
      Article
      Accés obert
      Distributed generation inverters have become a key element to improve grid efficiency and reliability, particularly during grid faults. Under these severe perturbations, inverter-based power sources should accomplish ...

    • Adaptive droop for control of multiterminal DC bus integrating energy storage 

      Gavriluta, Catalin; Candela García, José Ignacio; Rocabert Delgado, Joan; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2015-02-01)
      Article
      Accés obert
      Multiterminal dc (MTDC) systems are drawing a lot of interest lately in applications related to distributed generation, especially in those that integrate wind or photovoltaic (PV) generation with energy storage (ES). ...

    • Adaptive slope voltage control for distributed generation inverters with improved transient performance 

      Rey López, Juan Manuel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Camacho Santiago, Antonio; Guzmán Solà, Ramon (2019-04-09)
      Article
      Accés obert
      Reactive power injection in distributed generation inverters is an useful ancillary service for grid supporting purposes. For grid-feeding converters, the slope control method is the most common voltage regulation strategy ...

    • Analysis of ferroresonance effects in distribution networks with distributed source units 

      Monadi, Mehdi; Luna Alloza, Álvaro; Candela García, José Ignacio; Rocabert Delgado, Joan; Fayezizadeh, Mostafa; Rodríguez Cortés, Pedro (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The connection of Distributed Generation (DG) units to existing networks may give rise to harmful effects on the network and the DG units itself. Therefore, due to increasing penetration of DG units, it is important to ...

    • Centralized protection strategy for medium voltage DC microgrids 

      Monadi, Mehdi; Gavriluta, Catalin; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2016-08-15)
      Article
      Accés obert
      This paper presents a centralized protection strategy for medium voltage dc (MVDC) microgrids. The proposed strategy consists of a communication-assisted fault detection method with a centralized protection coordinator and ...

    • Comparison of different power loop controllers for synchronous power controlled grid-interactive converters 

      Zhang, Weiyi; Remón, D.; Mir Cantarellas, Antonio; Luna Alloza, Álvaro; Rocabert Delgado, Joan; Candela García, José Ignacio; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The impact caused by the large scale penetration of renewable energy sources into electrical grid has been given an increasing concern in the past decade. Multiple challenges will occur in the future when the share of the ...

    • 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 grid-connected power converters based on a virtual admittance control loop 

      Rodríguez Cortés, Pedro; Candela García, José Ignacio; Citro, Costantino; Rocabert Delgado, Joan; Luna Alloza, Álvaro (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The connection of electronic power converters to the electrical network is increasing mainly due to massive integration of renewable energy systems. However, the electrical dynamic performance of these converters does ...

    • 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 ...

    • Control of PV generation systems using the synchronous power controller 

      Rodríguez Cortés, Pedro; Candela García, José Ignacio; Luna Alloza, Álvaro (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The high penetration of distributed generation, as PV or wind power, has forced the Transmission System Operators (TSOs) to set restrictive requirements for the operation of such systems. As it can be extracted from ...

    • Control strategies based on effective power factor for distributed generation power plants during unbalanced grid voltage 

      Camacho Santiago, Antonio; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; Guzmán Solà, Ramon; de Sousa Pérez, Óscar; Martí Colom, Pau; García de Vicuña Muñoz de la Nava, José Luis (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Unbalanced voltages in three-phase power systems is a common perturbation propagated along the grid. Distributed Generation plants have gained widespread attention due to their capability to improve power quality in a ...

    • Control strategy for grid-connected three-phase inverters during voltage sags to meet grid codes and to maximize power delivery capability 

      Garnica López, Miguel Andrés; García de Vicuña Muñoz de la Nava, José Luis; Miret Tomàs, Jaume; Castilla Fernández, Miguel; Guzmán Solà, Ramon (2018-01-12)
      Article
      Accés obert
      Inverter-based distributed generation plays a vital role in the stability and reliability of new power systems. Under voltage sags, these systems must remain connected to the electrical network according to the stringent ...

    • Control strategy to maximize the power capability of PV three-phase inverters during voltage sags 

      Sosa, Jorge Luis; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; Al-Turki, Y.A. (2016-04-01)
      Article
      Accés obert
      Under voltage sags, grid-tied photovoltaic inverters should remain connected to the grid according to low-voltage ride-through requirements. During such perturbations, it is interesting to exploit completely the distributed ...

    • DC voltage control and power sharing in multiterminal DC grids based on optimal DC power flow and voltage-droop strategy 

      Rouzbehi, Kumars; Miranian, Arash; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2014-07-11)
      Article
      Accés restringit per política de l'editorial
      This paper proposes an effective dc voltage and power-sharing control structure for multiterminal dc (MTDC) grids based on an optimal power flow (OPF) procedure and voltage-droop control implemented in the different ...