Enviaments recents

  • State-space model of qZSI based PMSG-WPGSs for transient dynamic studies 

    Monjo Mur, Lluís; Sainz Sapera, Luis (2021-09)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The use of permanent magnet synchronous generators (PMSGs) with full-scale back-to-back converters is rising as a common option in wind power generation systems (WPGSs). An efficient grid integration of PMSG-WPGSs is ...
  • Explore courses: virtual vs face-to-face 

    Grau Vilalta, Maria Dolors; Torra Bitlloch, Immaculada; Cunill Solà, Jordi (2020)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The “EXPLORATORI” is a project from the Universitat Politècnica de Catalunya (UPC) and the Berga Town Council. The main objective of the project is to bring science closer to secondary school students, their teachers and ...
  • On resonance instabilities in VSCs connected to weak grids 

    Orellana Montaño, Luis Carlos; Prieto Araujo, Eduardo; Sainz Sapera, Luis; Cheah Mañé, Marc; Gomis Bellmunt, Oriol (2019)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper addresses the oscillatory stability phenomena studied in the literature and reported by network operators in grid-connected VSC systems. Negative interactions have been observed at different frequencies in these ...
  • Symmetrical and unsymmetrical voltage sag effects on the three-phase synchronous machine stability 

    Aguilar Galván, Daniel; Rolán Blanco, Alejandro; Vázquez, Gerardo; Córcoles López, Felipe; Rodríguez Cortés, Pedro (2009)
    Comunicació de congrés
    Accés obert
    This paper focuses on the effects of voltage sags, both symmetrical and unsymmetrical, on the three-phase Synchronous Machine (SM). Voltage sags on SM cause speed variations, current and torque peaks and hence may cause ...
  • Modelling VSCs connected to weak grids 

    Orellana Montaño, Luis Carlos; Prieto Araujo, Eduardo; Sainz Sapera, Luis; Cheah Mañé, Marc; Gomis Bellmunt, Oriol (2019)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper addresses the oscillatory stability phenomena studied in the literature and reported by network operators in grid-connected VSC systems. Negative interactions have been observed at different frequencies in these ...
  • DC-DC buck converter parameter identification based on a white-box approach 

    Balakrishnan, Hariharan; Moreno Eguilaz, Juan Manuel; Riba Ruiz, Jordi-Roger; Bogarra Rodríguez, Santiago; García Espinosa, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Comunicació de congrés
    Accés obert
    This paper proposes to use a white-box approach to identify the parameters of an electronic DC-DC buck converter. It discretizes the differential equations governing the dynamic of such system, which are used to identify ...
  • Detailed off-line parameter identification of synchronous generator based on frequency response tests 

    Bogarra Rodríguez, Santiago; García Espinosa, Antonio; Moreno Eguilaz, Juan Manuel; Riba Ruiz, Jordi-Roger (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Comunicació de congrés
    Accés obert
    This work presents a general methodology, based on standstill frequency response tests. Once the circuit topology is chosen, it allows a systematic calculation of the circuit parameters for a salient pole synchronous ...
  • Modeling and control of a three-phase grid-connected inverter under fault conditions 

    Rolán Blanco, Alejandro; Giménez, Pablo; Yague, Sauro J.; Bogarra Rodríguez, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The aim of this paper is to study the behavior of a three-phase inverter with an RL filter powered by a renewable energy source and connected to a grid under fault conditions. The novelty of the work lies in proposing a ...
  • Power control strategies during voltage sags according to Spanish grid code 

    Bogarra Rodríguez, Santiago; Córcoles López, Felipe; Saura Perisé, Jaime; Moreno Eguilaz, Juan Manuel; Bakkar, Mostafa (2018)
    Text en actes de congrés
    Accés obert
    In order to connect any power converters into the grid there are some grid requirements to insure the safe operation of the grid. So, the control of the converters especially during abnormal ...
  • Study of voltage sag impact on LED lamp consumed currents 

    Monjo Mur, Lluís; Mesas García, Juan José; Sainz Sapera, Luis; Pedra Durán, Joaquim (2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
  • Cable fault characterization in VSC DC systems 

    Mesas García, Juan José; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2016)
    Comunicació de congrés
    Accés restringit per política de l'editorial
  • Electrical resonance instability study in wind power plants 

    Sainz Sapera, Luis; Mesas García, Juan José; Monjo Mur, Lluís; Pedra Durán, Joaquim; Cheah Mañé, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Wind power plant stability can be affected by the interaction between the wind turbine and the resonances in the collector grid. This paper presents an electrical resonance instability study applied to wind power plants. The ...

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