Now showing items 1-13 of 13

    • Analysis and control of multi–area HVDC interconnected power systems by using virtual inertia 

      Rakhshani, Elyas (Universitat Politècnica de Catalunya, 2016-12-14)
      Doctoral thesis
      Open Access
      Virtual inertia is known as an inevitable part of the modern power systems. Recent trend of research is oriented in different methods of emulating virtual inertia in different part of the systems. This dissertation is ...
    • Aportaciones al filtrado híbrido paralelo en redes trifásicas de cuatro hilos 

      Candela García, José Ignacio (Universitat Politècnica de Catalunya, 2009-09-08)
      Doctoral thesis
      Open Access
      Este trabajo se dedica a analizar los diferentes elementos y estructuras de los filtros híbridos paralelo, aplicados a redes trifásicas de potencia. Y dentro de este campo, se concentra en el desarrollo de filtros híbridos ...
    • Common-mode voltage cancellation in single- and three-phase transformer-less PV power converters 

      Vázquez Guzmán, Gerardo (Universitat Politècnica de Catalunya, 2013-02-04)
      Doctoral thesis
      Open Access
      Electrical Energy generation is an issue that is continuously cause of concern around the world. Many efforts have been done in this sense to cover the requirements of the constantly growing in the electrical energy demand. ...
    • Competitive power control of distributed power plants 

      Mir Cantarellas, Antonio (Universitat Politècnica de Catalunya, 2018-04-05)
      Doctoral thesis
      Open Access
      Nowadays, the electrical energy sector is currently found in a dramatic changing paradigm, which moves towards an increasing trend in generating power at distribution levels, where electricity is typically consumed, by ...
    • Control and operation of multi-terminal VSC-DC networks 

      Gavriluţă, Cătălin (Universitat Politècnica de Catalunya, 2015-03-04)
      Doctoral thesis
      Open Access
      For the past century, ac networks have been established as the standard technology for electrical power transmission system s. However, the de technology has not disappeared completely from this picture. The capability of ...
    • Control of grid connected power converters with grid support functionalities 

      Zhang, Weiyi (Universitat Politècnica de Catalunya, 2017-06-01)
      Doctoral thesis
      Open Access
      The installation of power generation systems based on renewable energy sources has been increasing exponentially over the last decades. However, in spite of the well-known merits of such energy sources, the expansion of ...
    • Custom power active transformer for flexible operation of power systems 

      Elsaharty, Mohamed Atef Abbas (Universitat Politècnica de Catalunya, 2018-07-06)
      Doctoral thesis
      Open Access
      This PhD dissertation proposes a new transformer, i.e., the Custom Power Active Transformer, characterized by a specific design of its magnetic circuit and auxiliary windings which allows shunt and series compensation to ...
    • 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)
      UPC Master thesis
      Open Access
    • Energy storage systems integration into PV power plants 

      Beltrán San Segundo, Héctor (Universitat Politècnica de Catalunya, 2011-12-16)
      Doctoral thesis
      Open Access
      The boom experienced by renewable sources in recent years has changed their consideration as a marginal component of the electrical system mix into a major player with an important role in the demand coverage in many ...
    • Impact of solar PV plants with synchronous power controllers on power system stability 

      Remón Rodríguez, Daniel (Universitat Politècnica de Catalunya, 2017-12-19)
      Doctoral thesis
      Open Access
      The irruption of renewable energy sources with power electronics interfaces is transforming power systems. To minimize the possible adverse effects that these generating systems may have on the power grid, transmission ...
    • Multi-terminal HVDC grids control and operation 

      Rouzbehi, Kumars (Universitat Politècnica de Catalunya, 2016-03-29)
      Doctoral thesis
      Open Access
      In recent years, there have been considerable efforts in the design and development of technologies and techniques for more efficient harvesting of renewable energy resources to meet the ever increasing electric power ...
    • Photovoltaic power converter for large scale applications 

      Verdugo Retamal, Cristian Andrés (Universitat Politècnica de Catalunya, 2021-07-23)
      Doctoral thesis
      Open Access
      Most of large scale photovoltaic systems are based on centralized configurations with voltage source converters of two or three output voltage levels connected to photovoltaic panels. With the development of multilevel ...
    • Protection and fault management in active distribution systems 

      Monadi, Mehdi (Universitat Politècnica de Catalunya, 2016-12-14)
      Doctoral thesis
      Open Access
      The integration of renewable energy resources (RES), as a type of distributed generation (OG) units, is increasing in distribution, systems. This integration, changes the topology, performance and the operational aspects ...