Ara es mostren els items 186-205 de 213

    • Selective operation of distributed current flow controller devices for meshed HVDC grids 

      Sau Bassols, Joan; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol; Hassan, Fainan (Institute of Electrical and Electronics Engineers (IEEE), 2018-06-18)
      Article
      Accés restringit per política de l'editorial
      In meshed High Voltage Direct Current (HVDC) grids, Current Flow Controllers (CFC) may be required to avoid bottlenecks or line overloads. The present paper proposes the concept of installing Distributed Current Flow ...
    • Semi-explicit multilinear modeling of a PQ open-loop controlled PV inverter in aß-frame 

      Kaufmann, Christoph; Pangalos, Georg; Lichtenberg, Gerwald; Gomis Bellmunt, Oriol (Elsevier, 2023-05-01)
      Article
      Accés obert
      This paper introduces semi-explicit multilinear modeling to ac power systems, including voltage source converters. Firstly, the novel semi-explicit multilinear modeling class is explained. Then this class is applied to a ...
    • Sensorless control of a power converter for a cluster of small wind turbines 

      Egea Álvarez, Agustí; Araguees Penalba, Monica; Gomis Bellmunt, Oriol; Rull Duran, Joan; Sudrià Andreu, Antoni (2016-05-01)
      Article
      Accés obert
      This study presents a new sensorless control for small wind turbine clusters with a single power converter with a direct torque control algorithm. The proposed system consists of a wind farm connected to a back-to-back ...
    • Series interline DC/DC current flow controller for meshed HVDC grids 

      Sau Bassols, Joan; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol; Hassan, Fainan (2017-07-30)
      Article
      Accés restringit per política de l'editorial
      This paper proposes a DC/DC Current Flow Controller (CFC) for meshed High Voltage Direct Current (HVDC) grids. The CFC has the advantage of a simplified structure that allows to use minimum number of switches when ...
    • Short circuit analysis of an offshore AC network having multiple grid forming VSC-HVDC links 

      Raza, Muhammad; Aragüés Peñalba, Mònica; Gomis Bellmunt, Oriol (2018-11-01)
      Article
      Accés obert
      This article presents the short circuit analysis of an offshore AC network which consists of wind power plants interconnected using HVAC cables. The power generated in the offshore AC network is transmitted to several ...
    • Short-circuit analysis of AC distribution systems dominated by voltage source converters considering converter limitations 

      Song, Jie; Cheah Mañé, Marc; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2022-09-12)
      Article
      Accés restringit per política de l'editorial
      This paper deals with the short-circuit analysis of distribution systems dominated by Voltage Source Converters (VSCs). A novel methodology has been proposed in this paper for short-circuit calculation of power systems ...
    • Short-circuit analysis of grid-connected PV power plants considering inverter limits 

      Song, Jie; Cheah Mañé, Marc; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (Elsevier, 2023-07-01)
      Article
      Accés restringit per política de l'editorial
      This paper presents a short-circuit analysis of grid-connected photovoltaic (PV) power plants, which contain several Voltage Source Converters (VSCs) that regulate and convert the power from DC to AC networks. A different ...
    • Short-term energy storage for power quality improvement in weak MV grids with distributed renewable generation 

      Díaz González, Francisco; del Rosario Calaf, Gerard; Girbau Llistuella, Francesc; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Comunicació de congrés
      Accés obert
      The intermittent and stochastic nature of renewable energy sources impose several challenges for the operation of electrical networks, and affect power quality levels as well. This paper addresses one of the issues associated ...
    • Small signal stability analysis of offshore AC network having multiple VSC-HVDC system 

      Raza, Muhammad; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (2017-07-11)
      Article
      Accés restringit per política de l'editorial
      This article presents a small signal analysis of an offshore AC network to integrate offshore wind energy with the main AC grid at shore through more than one VSC-HVDC transmission system. The offshore AC network reference ...
    • Stability analysis of systems with high VSC penetration: where is the limit? 

      Collados Rodríguez, Carlos; Cheah Mañé, Marc; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2019-12-16)
      Article
      Accés obert
      The paper addresses the stability of modern voltage-source-converter-dominated power systems, which are experiencing a progressive phase-out of conventional generation. An essential system model is used to capture the ...
    • Stability and interaction analysis in islanded power systems including VSC-HVDC and LCC-HVDC power converters 

      Collados Rodríguez, Carlos; Cheah Mañé, Marc; Prieto Araujo, Eduardo; Ferrer San José, Ricard; Sánchez Sánchez, Enric; Gomis Bellmunt, Oriol; Sanz, Silvia; Longás, Carmen; Cordón, Antonio; Coronado, Luis (2018)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Islanded power systems are often connected to larger mainland power systems using HVDC cables. These interconnections are used to import power at lower cost compared to local generation and improve the security of supply. ...
    • Stability and operation limits of power systems with high penetration of power electronics 

      Collados Rodríguez, Carlos; Cheah Mañé, Marc; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (Elsevier, 2022-06)
      Article
      Accés obert
      Modern power systems are facing a number of challenges related to stability when integrating large amounts of power electronics, which is present in renewable generation, energy storage, flexible AC transmission systems ...
    • Stability assessment for multi-infeed grid-connected VSCs modeled in the admittance matrix form 

      Orellana Montaño, Luis Carlos; Sainz Sapera, Luis; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (2021-09-01)
      Article
      Accés obert
      The increasing use of power electronics converters to integrate renewable energy sources has been a subject of concern due to the resonance oscillatory phenomena caused by their interaction with poorly damped AC networks. ...
    • Steady-state analysis of the modular multilevel converter. 

      Westerman Spier, Daniel; López Mestre, Joaquim; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Comunicació de congrés
      Accés obert
      In this paper, the steady-state behavior of the modular multilevel converter (MMC) is studied under balanced and unbalanced AC grid voltage conditions. The suggested mathematical model is derived combining the converter ...
    • Steady-state impedance mapping in grids with power electronics: What is grid strength in modern power systems? 

      Gomis Bellmunt, Oriol; Song, Jie; Cheah Mañé, Marc; Prieto Araujo, Eduardo (2022-03-01)
      Article
      Accés obert
      The paper analyzes grid strength and grid impedance for systems with significant penetration of power electronics. The work shows that the traditionally employed Thévenin equivalent cannot capture the different saturation ...
    • Strategies for reactive power control in wind farms with STATCOM 

      Díaz González, Francisco; Martínez Rojas, Marcela; Sumper, Andreas; Gomis Bellmunt, Oriol (2010)
      Text en actes de congrés
      Accés obert
      This paper presents three strategies for reactive power control in wind farms with STATCOM. First, the STATCOM system and its applications in electric power systems and wind farms are shown. Second, the modeling done of ...
    • Study of black-box models and participation factors for the positive-mode damping stability criterion 

      Orellana Montaño, Luis Carlos; Sainz Sapera, Luis; Prieto Araujo, Eduardo; Cheah Mañé, Marc; Mehrjerdi, Hasan; Gomis Bellmunt, Oriol (Elsevier, 2023-06-01)
      Article
      Accés obert
      The dominance of power electronics in modern power systems makes it difficult to study stability with sufficient accuracy given the available information, so it is necessary to enhance current frequency-based stability ...
    • Subministrament d'electricitat a la cooperativa artesana de Vontovorona 

      Gomis Bellmunt, Oriol (2008)
      Pòster (projecte CCD)
      Accés obert
    • Suitable method of overloading for fast primary frequency control from offshore wind power plants in multi-terminal DC grid 

      Sakamuri, Jayachandra; Sau Bassols, Joan; Prieto Araujo, Eduardo; Hansen, Anca; Altin, Mufit; Cutululis, Nicolaos Antonio; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Increased penetration of offshore wind power plants (OWPPs) demands frequency control services from them. Overloading the wind turbine, for few seconds after the under frequency event, ...
    • Superredes, las redes eléctricas del futuro 

      Aragüés Peñalba, Mònica; Prieto Araujo, Eduardo; Egea Álvarez, Agustí; Gomis Bellmunt, Oriol (Rama de estudiantes del IEEE de Barcelona, 2013-05)
      Article
      Accés obert