Now showing items 1-20 of 27

  • Acoustic Rotor. Driving rotation through acoustic vortex creation and exchange of orbital angular momentum 

    Escobar Torres, Carlota (Universitat Politècnica de Catalunya, 2012)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
  • Aerodynamics of Rotor in Confined ENvironment (ARChEaN) 

    García Magaña, Cristian (Universitat Politècnica de Catalunya, 2014-06-11)
    Bachelor thesis
    Restricted access - confidentiality agreement
  • Analysis of the three-phase induction motor with spiral sheet rotor 

    Mujal-Rosas, Ramon Maria (2012-02)
    Article
    Restricted access - publisher's policy
    The improvements obtained on the torque with low currents using rotor with spiral sheets are analyzed in this paper. To have a complete study, several rotors and stators have been built to verify the electromagnetic variations ...
  • A novel broken rotor bar fault detection method using park’s transform and wavelet decomposition 

    Salehi Arashloo Arashloo, Ramin; Romeral Martínez, José Luis; Salehifar, Mehdi (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference lecture
    Restricted access - publisher's policy
    Detection of broken rotor bars has been an important but difficult work in fault diagnosis area of induction motors. The characteristic frequency components of faulted rotor are very close to the power frequency component ...
  • A Novel PMSM Hybrid Sensorless Control Strategy for EV Applications Based on PLL and HFI 

    Trancho, Elena; Ibarra Basabe, Edorta; Arias Pujol, Antoni; Salazar, Cristobal; Lopez, Iñigo; Diaz de Guereñu, A.; Peña, alberto (2016)
    Journal
    Open Access
    In this paper, a novel hybrid sensorless control strategy for Permanent Magnet Synchronous Machine (PMSM) drives applied to Electric Vehicles (EV) is presented. This sensorless strategy covers the EV full speed range and ...
  • A practical approach to HFI based sensorless control of PM-assisted synchronous reluctance machines applied to EVs and HEVs 

    Trancho, Elena; Ibarra Basabe, Edorta; Arias Pujol, Antoni; Kortabarria, Iñigo; Prieto, Pablo (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Restricted access - publisher's policy
    Sensorless control is a promising alternative for controlling Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) propulsion systems without the need of complex devices, such as resolvers or encoders. As the usage of ...
  • Detailed study of DFIG-based wind turbines to overcome the most severe grid faults 

    Rolán Blanco, Alejandro; Pedra Durán, Joaquim; Córcoles López, Felipe (2014-11-01)
    Article
    Restricted access - publisher's policy
    This paper studies the effects of voltage sags caused by faults on doubly-fed induction generators to overcome grid faults. A wide range of sag duration and depth values is considered. It is observed that sag duration ...
  • Diagnosis Methodology Based on Statistical-time Features and Linear Discriminant Analysis Applied to Induction Motors 

    Saucedo Dorantes, Juan Jose; Osornio Rios, Roque A.; Delgado Prieto, Miquel; Romero Troncoso, René de Jesús (2017)
    Conference report
    Restricted access - publisher's policy
    The development of condition monitoring strategies is necessary to ensure the efficiency and reliability of the operation on electric machines. The feature calculation is an important signal processing step used to obtain ...
  • Effect of rotor spinning transfer channel modification on fiber orientation and yarn properties 

    Lin, Huiting; Akankwasa, Nicholus Tayari; Bergadà Granyó, Josep Maria; Wang, Jun (2018-11-07)
    Article
    Restricted access - publisher's policy
    The vortices are generated at the conventional transfer channel, having adverse effects on fiber configuration. In a former research, a conventional transfer channel was modified via rounding the transfer channel inlet ...
  • Estudi d'algoritmes de prognosi aplicats a UAVs (Unmaned Aerial Vehicles) multirotors 

    Costal Acosta, Sergi (Universitat Politècnica de Catalunya, 2015-01)
    Master thesis (pre-Bologna period)
    Open Access
    Aquest projecte consisteix en un estudi sobre dos tipologies de motors reals de UAVs per tal de poder detectar errors gràcies a la visualització de variacions en el seu comportament habitual. En primera instància es parla ...
  • Estudio sobre el método de propulsión mediante rotores Flettner 

    Chica Bertol, Arnau (Universitat Politècnica de Catalunya, 2012-07-11)
    Master thesis (pre-Bologna period)
    Open Access
  • Estudi per a la fusió de dades de posició i actitud en un multirotor AscTec Hummingbird 

    Capella Roca, Pol (Universitat Politècnica de Catalunya, 2015-10)
    Bachelor thesis
    Open Access
    Estudi dels protocols de comunicació de dispositius GPS convencionalsEstudi del software de control del Hummingbird, apartat de lectura de sensorsIntegració del MB100 i modificació del software si convéEstudi del software ...
  • General analysis of the three-phase asynchronous motor with spiral sheet rotor: operation, parameters and characteristic values 

    Mujal-Rosas, Ramon Maria; Orrit Prat, Jordi (2010-06-10)
    Article
    Open Access
    The objectives of this article arise through the investigation of a motor with a high starting torque although with limited intensities, weak intensity variations depending on the load, controlled losses in no-load ...
  • Improvements in direct torque control of induction motors 

    Arias Pujol, Antoni (Universitat Politècnica de Catalunya, 2001-03-01)
    Doctoral thesis
    Open Access
    This thesis is mainly devoted to the investigation of speed control methods for three phase cage induction motors with particular emphasis being given to Direct Torque Control (DTC) improved techniques.<br/>Classical Direct ...
  • Induction motor with spiral sheet rotor 

    Mujal-Rosas, Ramon Maria; Boix Aragonès, Oriol; Colom Fajula, Xavier (2009)
    Conference lecture
    Open Access
    mprovements in torque at low currents using a rotor with spiral sheets are analyzed. Several rotors and stators have been built combining different constructive and mechanical characteristics of the related elements : ...
  • Induction motor with spiral sheet rotor 

    Mujal-Rosas, Ramon Maria; Boix Aragonès, Oriol; Colom Fajula, Xavier (2009)
    Conference lecture
    Open Access
    mprovements in torque at low currents using a rotor with spiral sheets are analyzed. Several rotors and stators have been built combining different constructive and mechanical characteristics of the related elements : ...
  • LPV Control of a Quadrotor 

    Torren Larroya, Abel (Universitat Politècnica de Catalunya, 2015-03)
    Master thesis
    Open Access
    This master thesis addresses the LPV control of a quadrotor system. The quadorotor model is first transformed to a LPV model respresentation starting from the nonlinear physical model. Then, using the LPV gain-scheduling ...
  • Motion intention optimization for multirotor robust video stabilization 

    Aguilar, Wilbert G.; Angulo Bahón, Cecilio; Pardo, Jorge A. (IEEE Press, 2017)
    Conference report
    Open Access
    In this paper we present an optimization algorithm for simultaneously detecting video freeze and obtaining the minimum number of the frame required in motion intention estimation for real time robust video stabilization ...
  • Nonlinear Model Predictive Control of a Quadrotor 

    Melgarejo Hernández, Emilio (Universitat Politècnica de Catalunya, 2016-09-05)
    Master thesis
    Open Access
    One of the most important features of a quadrotor in order to properly work, generally in some sort of path tracking, is to have a suitable control. This thesis will approach the problem of controlling a quadrotor applying ...
  • PMSM drive position estimation: contribution to the high-frequency injection voltage selection issue 

    Medjmadj, Slimane; Diallo, Demba; Mostefai, Mohammed Amine; Delpha, Claude; Arias Pujol, Antoni (2015-03-01)
    Article
    Open Access
    High-frequency injection (HFI) is an alternative method to estimate permanent magnet synchronous motor (PMSM) rotor position using magnetic saliency. Once the maximum fundamental electrical frequency and the power converter ...