Exploració per autor "Córcoles López, Felipe"Més informacióMés informació

Ara es mostren els items 21-30 de 30

    • Saturation effects on torque- and current–slip curves of squirrel-cage induction motors 

      Monjo Mur, Lluís; Córcoles López, Felipe; Pedra Durán, Joaquim (2012-12-24)
      Article
      Accés restringit per política de l'editorial
      This paper measures and analyzes the saturation effects on torque- and current–slip curves of three squirrel-cage induction motors.Motor saturation is illustrated by three sets of measurements: I) torque and current for ...

    • Simulation of wound rotor synchronous machine under voltage sags 

      Aguilar Galván, Daniel; Vázquez Guzmán, Gerardo; Rolán Blanco, Alejandro; Rocabert Delgado, Joan; Córcoles López, Felipe; Rodríguez Cortés, Pedro (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Comunicació de congrés
      Accés obert
      This paper presents a study of the Wound Rotor Synchronous Machine (SM) stability under voltage sags (dips). Machine behavior has been analyzed by considering different magnitudes (or depths) and duration of the sag. ...

    • Small synchronous machine protection during voltage sags caused by MV grid faults 

      Bogarra Rodríguez, Santiago; Rubion, X.; Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim; Iglesias, J. (2018-03-01)
      Article
      Accés obert
      This paper analyses the impact of symmetrical and unsymmetrical voltage sags caused by distribution and transmission faults on the dynamic behaviour of small salient-pole synchronous machines connected to the MV grid, and ...

    • Smart switching in single-phase grid-connected photovoltaic power systems for inrush current elimination 

      Martínez Figueroa, Gerardo de Jesús; Bogarra Rodríguez, Santiago; Córcoles López, Felipe (2023-10-01)
      Article
      Accés obert
      Grid-connected photovoltaic (PV) power systems are one of the most promising tech- nologies to address growing energy demand and ecological challenges. This paper proposes smart switching to mitigate inrush currents during ...

    • Squirrel-cage induction motor parameter estimation using a variable frequency test 

      Monjo Mur, Lluís; Kojooyan, Hengameh; Córcoles López, Felipe; Pedra Durán, Joaquim (2015-06-01)
      Article
      Accés obert
      This paper presents amethod for squirrel-cage induction motor parameter estimation using a phase-to-phase standstill variable frequency test. The measured resistance and reactance at different frequencies are the data of ...

    • 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 ...

    • Testing of three-phase equipment under voltage sags 

      Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim; Monjo Mur, Lluís; Bogarra Rodríguez, Santiago (2015-04-09)
      Article
      Accés obert
      This paper provides insight into the testing of three-phase equipment exposed to voltage sags caused by faults. The voltage sag recovers at the fault-current zeros, leading to a ‘discrete’ voltage recovery, that is, the ...

    • Using the instantaneous power of a free acceleration test for squirrel-cage motor parameters estimation 

      Kojooyan, Hengameh; Monjo Mur, Lluís; Córcoles López, Felipe; Pedra Durán, Joaquim (2015-09-01)
      Article
      Accés obert
      A new parameters determination method for squirrel-cage induction motors is presented. As a main contribution, the method uses the instantaneous electrical power and the mechanical speed measured in a free acceleration ...

    • Voltage feed-forward performance in stationary reference frame controllers for wind power applications 

      Ma, Lin; Luna Alloza, Álvaro; Rocabert Delgado, Joan; Muñoz Aguilar, Raúl Santiago; Córcoles López, Felipe; Rodríguez Cortés, Pedro (IEEE, 2011)
      Text en actes de congrés
      Accés obert
      In order to improve the connected current and the response speed of the controller, stationary reference frame control strategy with proportional resonant (P-R) controller due to its high dynamic and good harmonic ...

    • Voltage sag influence on controlled three-phase grid-connected inverters according to the Spanish grid code 

      Bakkar, Mostafa; Bogarra Rodríguez, Santiago; Rolán Blanco, Alejandro; Córcoles López, Felipe; Saura Perisé, Jaime (2020-02-03)
      Article
      Accés obert
      To ensure the safe operation of the grid, there are some requirements to be taken into consideration to connect power converters. During abnormal conditions – e.g. during voltage sags –, the control of the converters is a ...