Exploració per tema "Energia elèctrica -- Generació distribuïda"

Ara es mostren els items 1-18 de 18

    • 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 ...

    • 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 ...

    • Advance control of multilevel converters for integration of distributed generation resources into ac grid 

      Pouresmaeil, Edris (Universitat Politècnica de Catalunya, 2012-03-27)
      Tesi
      Accés obert
      Distributed generation (DG) with a converter interface to the power grid is found in many of the green power resources applications. This dissertation describes a multi-objective control technique of voltage source ...

    • Avoiding overvoltage problems in three-phase distributed-generation systems during unbalanced voltage sags 

      Castilla Fernández, Miguel; Camacho Santiago, Antonio; Miret Tomàs, Jaume; Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis (2020-02-01)
      Article
      Accés obert
      During voltage sags, distributed generation systems must fulfil specific grid-code requirements for reactive current injection. This ancillary service can produce overvoltage problems in networks operating in unbalanced ...

    • 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 ...

    • Derivative based inertia emulation of interconnected systems considering phase-locked loop dynamics 

      Rakhshani, Elyas; Remon, Daniel; Mir Cantarellas, Antonio; Mehrjerdi, H.; Rodríguez Cortés, Pedro (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Recent trend of research is oriented in different methods of emulating the inertia to increase the sustainability of the system. In the case of dynamic performance of power systems especially in frequency control of ...

    • Estudi de potenciabilitat de les micro-xarxes col·laboratives 

      Torrebadella Casòliva, Lídia (Universitat Politècnica de Catalunya, 2019-02-04)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      El present treball pretén proposar un enfocament diferent del que es té actualment en relació al consum d’energia elèctrica, passant d’una generació centralitzada, basada en grans centrals de producció de les quals un alt ...

    • Flexible grid connection and islanding of SPC-based PV power converters 

      Rodríguez Cortés, Pedro; Citro, Costantino; Candela García, José Ignacio; Rocabert Delgado, Joan; Luna Alloza, Álvaro (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés obert
      Photovoltaic power plants (PV) are equipped with anti-islanding algorithms, embedded in the converters controller, to avoid the island operation. However, the current trends in the development of the future electrical ...

    • Flexible voltage support control for three-phase distributed generation inverters under grid fault 

      Camacho Santiago, Antonio; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Vasquez, Juan C.; Alarcón Gallo, Eduardo (Institute of Electrical and Electronics Engineers (IEEE), 2013-04)
      Article
      Accés restringit per política de l'editorial
      Ancillary services for distributed generation (DG)systems become a challenging issue to smartly integrate renewable-energy sources into the grid. Voltage control is one of these ancillary services which can ride through ...

    • 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 ...

    • Multi-terminal MVDC grids fault location and isolation 

      Monadi, Mehdi; Koch-Ciobotaru, Cosmin; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2016-06-28)
      Article
      Accés obert
      Voltage source converters (VSCs) are highly vulnerable to DC fault current; thus, protection is one of the most important concerns associated with the implementation of multi-terminal VSC-based DC networks. This paper ...

    • Optimal tuning of the control parameters of an inverter-based microgrid using the methodology of design of experiments 

      Miret Tomàs, Jaume; Balestrassi, Pedro Paulo; Camacho Santiago, Antonio; Guzmán Solà, Ramon; Castilla Fernández, Miguel (2020-10-01)
      Article
      Accés obert
      The design of the control system in an inverter-based microgrid is a challenging problem due to the large number of parameters involved. Different optimisation methods based on obtaining an approximated mathematical model ...

    • Optimal voltage-support control for distributed generation inverters in RL grid-faulty networks 

      Garnica López, Miguel Andrés; García de Vicuña Muñoz de la Nava, José Luis; Miret Tomàs, Jaume; Castilla Fernández, Miguel; Guzmán Solà, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2019-10-30)
      Article
      Accés obert
      During grid faults, the stability and reliability of the network are compromised, and the risk of a widespread disconnection of distributed generation power facilities is increased. Distributed generation inverters must ...

    • Optimització de l'operació de la generació elêctrica distribuïda i de l'emmagatzemament en una micro-xarxa 

      Font Miñarro, Ivan (Universitat Politècnica de Catalunya, 2015-04)
      Projecte/Treball Final de Carrera
      Accés obert
      El present projecte t e com a objectiu l'estudi i la optimitzaci o d'una microxarxa el ectrica la qual s'abasteix d'energia mitjan cant fonts renovables tals com plaques solars i aerogeneradors. Mitjan cant l'aplicaci o ...

    • The frequency-independent control method for distributed generation systems 

      Naderi, Siamak; Pouresmaeil, Edris; Wenzhong Gao, David (2012-08)
      Article
      Accés restringit per política de l'editorial
      In this paper a novel frequency-independent control method suitable for distributed generation (DG) is presented. This strategy is derived based on the abc/αβ transformation and abc/dq transformation of the ac system ...

    • Voltage regulation of medium voltage distribution system in the presence of decentralized generation unit 

      Seguí Llabrés, María Catalina (Universitat Politècnica de Catalunya / Faculté Polytechnique de Mons, 2011)
      Projecte/Treball Final de Carrera
      Accés restringit per decisió de l'autor
      The electric power distribution network has traditionally been operated in a passive mode where most of the electricity was generated by large power plants, delivered to the customers through distribution networks. Thus ...

    • Voltage support experimental analysis of a low-voltage ride-through strategy applied to grid-connected distributed inverters 

      Garnica López, Miguel Andrés; García de Vicuña Muñoz de la Nava, José Luis; Miret Tomàs, Jaume; Camacho Santiago, Antonio; Guzmán Solà, Ramon (2018-07-27)
      Article
      Accés obert
      In recent decades, different control strategies have been designed for the increasing integration of distributed generation systems. These systems, most of them based on renewable energies, use electronic converters to ...