Now showing items 145-154 of 154

    Reducció del mode comú en convertidors Back-2-Back 

    Fillet Castella, Sergi (Date of defense: 2014-09-19)

    This work deals with the study of Back-2-Back converters, with special emphasis on its effects on the common mode. For the study performed, a review of the different known causes for bearing currents and the contribution ...

    Regulación de la actividad de la distribución de energía eléctrica 

    Ramírez Pisco, Rodrigo (Date of defense: 2010-07-07)

    La regulación de la actividad de la distribución, aspecto sobre el cual versa esta tesis, ha presentado un horizonte cambiante en los últimos años. Tales cambios se hallan relacionados con aspectos como:<br/>Retribución ...

    Remaining useful life and fault detection models for high voltage electrical connectors focused on predictive maintenance 

    Martínez Reyes, Jimmy Arturo (Date of defense: 2022-07-08)

    In recent years, industries have chosen to invest in technology with the aim of making their processes more efficient and thus offering market products of higher quality. Nowadays it is very common for companies to use ...

    Sag effects on protection system in distributed generation grids 

    Bakkar, Mostafa (Date of defense: 2022-02-07)

    Distributed Generators (DGs) are sensible to voltage sags, so the protection devices must trip fast to disconnect the faulted part of the grid. The DG disconnection will not be desirable in the near future with a large ...

    Simulación interactiva de motores de reluctancia autoconmutados 

    Blanqué Molina, Balduino (Date of defense: 2007-12-19)

    En esta tesis se hacen contribuciones a la simulación interactiva de motores de reluctancia autoconmutados desde la perspectiva de la ingeniería concurrente.<br/>En primer lugar, después de una breve introducción histórica, ...

    Sistema d'anàlisi i planificació de xarxes de distribució d'energia elèctrica de mitjana tensió 

    Gratacòs Prats, Jaume (Date of defense: 2016-01-18)

    The optimal planning of the annual development tasks of a medium voltage power distribution network, to tackle the evolution of the demand with maximum levels of quality and continuity of service and minimum investment, ...

    Sostenibilidad técnica, económica y ambiental de flotas comerciales de vehículos eléctricos 

    Cestau Cubero, Silvia (Date of defense: 2015-02-09)

    This doctoral thesis analyses whether electric vehicle is technical, economic and environmental sustainable. We have studied a company fleet of electric vehicles which has a carsharing service for the retail department to ...

    Stand-alone hybrid renewable energy systems (HRES) 

    Martínez Díaz, Maria del Mar (Date of defense: 2017-07-14)

    End of Energy Poverty and achieving Sustainable Energy for all by 2030 is a universal challenge. 1.3 billion people without energy access and 2.8 billion people using unsustainable solid fuel for cooking and heating are ...

    Ultra-low power circuits based on tunnel FETs for energy harvesting applications 

    Cavalheiro, David (Date of defense: 2017-05-19)

    There has been a tremendous evolution in integrated circuit technology in the past decades. With the scaling of complementary metal-oxide-semiconductor (CMOS) transistors, faster, less power consuming and more complex chips ...

    Virtually synchronous power plant control 

    Tarrasó Martínez, Andrés (Date of defense: 2022-02-22)

    During the last century, the electrical energy infrastructures have been governed by synchronous generators, producing electrical energy to the vast majority of the population worldwide. However, power systems are no longer ...