Ara es mostren els items 1-20 de 52

    • A comparative study of smart THD-based fault protection techniques for distribution networks 

      Al Hanaineh, Wael Hasan Ahmad; Matas Alcalá, José; Guerrero Zapata, Josep Maria (2023-05-01)
      Article
      Accés obert
      The integration of Distributed Generators (DGs) into distribution systems (DSs) leads to more reliable and efficient power delivery for customers. However, the possibility of bi-directional power flow creates new technical ...
    • Active and reactive power control of a PV generator for grid code compliance 

      Cabrera Tobar, Ana; Bullich Massagué, Eduard; Aragüés Peñalba, Mònica; Gomis Bellmunt, Oriol (2019-10-13)
      Article
      Accés obert
      As new grid codes have been created to permit the integration of large scale photovoltaic power plants into the transmission system, the enhancement of the local control of the photovoltaic (PV) generators is necessary. ...
    • Analysis and mitigation of harmonic distortion in distribution networks by an active filter 

      Leonardo, Gustavo Henrique; Albernaz Lacerda Freitas, Vinícius; Oleskovicz, Mário (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      As a result of the presence of non-linear loads, it is possible to verify the increasing of harmonic distortion in electric power systems. When amplified, it can induce the resonance effect. This effect becomes more and ...
    • Analysis of Inductive Power Transfer Systems for Electric Vehicle Charging Applications 

      Obiols Pascual-trenor, Santiago (Universitat Politècnica de Catalunya, 2019-06-18)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Cardiff University
      This research report is structured in 7 Chapters which pretend to guide the reader from a general point of view of Wireless Power Transfer (WPT) and its applications, to a deep and better understanding of Inductive Power ...
    • Analysis of reactive power strategies in HVDC-connected wind power plant clusters 

      Schönleber, Kevin; Ratés Palau, Sergi; Gomis Bellmunt, Oriol (2017-12)
      Article
      Accés obert
      © 2017 John Wiley & Sons, Ltd. Offshore wind power plants (WPPs) built near each other but far from shore usually connect to the main grid by a common high-voltage DC (HVDC) transmission system. In the resulting decoupled ...
    • Analysis of the blackout risk reduction when segmenting large power systems using lines with controllable power flow 

      Gomila Villalonga, Damià Agustí; Carreras Verdaguer, Benjamin; Reynolds Barredo, Jose Miguel; Colet Rafecas, Pere; Gomis Bellmunt, Oriol (2023-06-01)
      Article
      Accés obert
      Large electrical transmission networks are susceptible to undergo very large blackouts due to cascading failures, with a very large associated economical cost. In this work we propose segmenting large power grids using ...
    • Analytical solutions for studying pantograph-catenary interactions 

      Samvit Rajagopalan, Sanatkumar (Universitat Politècnica de Catalunya, 2023-03-01)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Birla Institute of Technology and science
      The thesis focuses on studying train pantograph-catenary dynamic interaction, which is an essential aspect of railway engineering, as it can significantly impact the performance and safety of the railway system. The ...
    • Complex networks-based control strategies for multi-terminal HVDC transmission lines 

      Aprile, Chiara (Universitat Politècnica de Catalunya, 2015-02)
      Projecte Final de Màster Oficial
      Accés obert
      The work proposes and analizes complex network-based controllers for HVDC transmission lines. Two different control approaches are studied: Distributed PID strategies, which take into account just local information of ...
    • Control design of Modular Multilevel Converters in normal and AC fault conditions for HVDC grids 

      Prieto Araujo, Eduardo; Junyent Ferré, Adrià; Collados Rodríguez, Carlos; Clariana Colet, Gerard; Gomis Bellmunt, Oriol (2017-11)
      Article
      Accés obert
      This paper describes a control design strategy of Modular Multilevel Converters (MMC) for High Voltage Direct Current (HVDC) applications to operate during normal and AC fault conditions. First, a steady state analysis of ...
    • Current flow controlling hybrid DC circuit breaker 

      Mokberdoran, Ataollah; Gomis Bellmunt, Oriol; Silva, Nuno; Carvalho, Adriano (2018-02)
      Article
      Accés obert
      This paper proposes a new device by combining features of an interline dual H-bridge current flow controller with the core idea of a hybrid HVdc circuit breaker for meshed HVdc grid application. The proposed device can ...
    • Descentralització de la distribució de l'energia elèctrica mitjançant la tecnologia Blockchain 

      Bordes Lanau, Albert (Universitat Politècnica de Catalunya, 2023-10-19)
      Treball Final de Grau
      Accés obert
      En aquest projecte es valora la capacitat i la viabilitat de passar d’un sistema de distribució d’energia elèctrica centralitzat com és el nostre (Catalunya) a un de descentralitzat. Per a la consideració d’aquest canvi ...
    • Design, implementation and validation of an IEC 61850-90-5 gateway for IEEE C37.118.2 synchrophasor data transfer 

      Reza Firouzi, Seyed (Universitat Politècnica de Catalunya, 2015-12)
      Projecte Final de Màster UPC
      Accés obert
    • Diseño de una transmisión mecánica continuamente variable 

      Villegas Alcaide, Minerva (Universitat Politècnica de Catalunya, 2006-10)
      Projecte/Treball Final de Carrera
      Accés obert
      El proyecto consiste en el diseño conceptual de una transmisión electromecánica continuamente variable y en el diseño de detalle de los componentes mecánicos de la transmisión. Recoge además un estudio de los antecedentes ...
    • Droop control for loss minimization in HVDC multi-terminal transmission systems for large offshore wind farms 

      Aragüés Peñalba, Mònica; Egea Àlvarez, Agustí; Galceran Arellano, Samuel; Gomis Bellmunt, Oriol (2014-07)
      Article
      Accés restringit per política de l'editorial
      A control scheme is proposed in order to minimize the losses in multi-terminal HVDC systems for large offshore wind power plants. This approach is based on two cascaded control schemes. A low level droop control regulates ...
    • Dynamic modelling and interaction analysis of multi-terminal VSC-HVDC grids through an impedance-based approach 

      Agbemuko, A. J.; Domínguez Garcia, José Luis; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (2019-12-01)
      Article
      Accés obert
      This paper presents an impedance-based interaction and stability analysis of multi-terminal HVDC systems. First, an analytical derivation procedure is presented to obtain the feedback impedance models of a voltage source ...
    • Dynamic response of Pelton runners: Numerical and experimental analysis in prototypes 

      Egusquiza Montagut, Mònica; Valentín Ruiz, David; Presas Batlló, Alexandre; Egusquiza Estévez, Eduard (Elsevier, 2020-09-01)
      Article
      Accés obert
      Worldwide electricity generation is featured by the growth of intermittent renewable energies. In this context, hydropower plays a fundamental role because it provides flexibility to the power grid and ensures its stability. ...
    • El·laboració d’un programa de càlcul dels camps elèctric i magnètic de les línies de transport d’energia elèctrica i obtenció de l’atenuació òptima 

      Martín López, Juan Pablo (Universitat Politècnica de Catalunya, 2009-04)
      Projecte/Treball Final de Carrera
      Accés obert
      El resultat del present projecte es una eina informàtica que permet la representació gràfica de la densitat de flux magnètic i del camp elèctric generats per línies de transport d’energia elèctrica. La representació ...
    • Energy Management for Stand-Alone Renewable Energy Systems (E-MAN-RES). Simulacions de sistemes. 

      Velo García, Enrique; Ferrer Martí, Laia; Guilera Giralt, Anna (2009-10)
      Working paper
      Accés obert
      L’objecte del present informe és la descripció dels treballs duts a terme en l’Activitat 2 del projecte E-MAN-RES: models de simulació i càlcul per optimització i anàlisi de sensibilitat de la gestió de la demanda, per ...
    • Estudio y diseño de sensores textiles en 3D 

      Royo Roig, Iris (Universitat Politècnica de Catalunya, 2022-07-19)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      El presente Trabajo Final de Máster tiene como objetivo el estudio, diseño, simulación, impresión y medición de un sensor tridimensional en textil plegable basado en un resonador mediante tecnología microstrip. El desarrollo ...
    • Extension del metodo de KAY para la estimacion conjunta de doppler y jerk 

      Sala Álvarez, José; Vázquez Grau, Gregorio (1991)
      Text en actes de congrés
      Accés obert
      An extension of Kay's method is presented for the joint estimation of Doppler and Doppler-rate of a sinusoid immersed in additive white gaussian noise. The algorithm is computationally efficient and circumvents the cumbersome ...