Mostrando ítems 1-20 de 146
Pouresmaeil, Edris (Fecha de defensa: 2012-03-27)
Distributed generation (DG) with a converter interface to the power grid is found in many of the green power resources applications. This dissertation describes a multi-objective control technique of voltage source ...
Stefanidou Voziki, Paschalia (Fecha de defensa: 2023-01-10)
(English) Reliable and uninterrupted power supply is crucial for modern societies. Therefore, the minimization of the power outages' duration is a priority for the power system operators. This thesis aims to contribute to ...
Adabi Firouzjaee, Mohammad Ebrahim (Fecha de defensa: 2018-01-25)
The solid state transformer (SST) is seen as a proper replacement of the conventional iron-and-copper transformer in the future smart grid . The SST offers several benefits (e.g. enhanced power quality performance or ...
Rakhshani, Elyas (Fecha de defensa: 2016-12-14)
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 ...
López Torres, Carlos (Fecha de defensa: 2018-07-12)
Automotive applications focus to develop drive-train technologies with higher energy efficiency and lower environmental impact. Electric and hybrid vehicles are gaining popularity since they fulfill these requirements . ...
Guerra Sánchez, Luis Gerardo (Fecha de defensa: 2016-04-05)
Currently it is widely accepted that the construction of large generation centers is no longer the best option to supply the increment of electric load. High costs related to the construction of new generation centers, ...
Domínguez García, José Luis (Fecha de defensa: 2013-09-18)
Wind power has emerged as one of the most promising renewable energy sources. The very penetration levels of wind energy in power systems have altered several aspects of power system operation, such as system stability. ...
Garrigosa i Garcia, Ramón (Fecha de defensa: 2017-09-15)
lt's a well-known fact that the flywheel stores energy inside, and this energy is proportional to the rotational speed and the moment of inertia. lf the moment of inertia increases, the energy increases in the same proportion ...
Martínez Teixidor, Immaculada (Fecha de defensa: 1998-01-20)
En el presente trabajo se pretende analizar el consumo de potencia reactiva y la distorsión armónica en el puente trifásico con carga activa resistivo-inductiva, con el objeto de disminuir ambas vertientes de contaminación ...
Ribes Ardanuy, Josep Maria (Fecha de defensa: 2012-10-03)
The object of this thesis is to analyze the evolution of railway interoperability and safety in Europe in the period 1991-2011. This pretends to assess what has been the legislative process at EU level in the last 20 ...
Belandria, Luciano Emilio (Fecha de defensa: 2015-09-18)
The phase-locked loop (PLL) is an element of a grid-connected converter system, which provides phase angle and frequency measurements of the grid voltage. The PLL takes care of control the synchronization with the grid ...
Rodríguez Cortés, Pedro (Fecha de defensa: 2005-02-24)
Este trabajo se dedica a la búsqueda de soluciones que permitan mejorar el comportamiento de los filtros activos de potencia en derivación que trabajan en redes trifásicas de cuatro hilos, incluso cuando se den condiciones ...
Sánchez López, José Antonio (Fecha de defensa: 2018-07-23)
`Today, the industry is facing a new way of organizing production, lndustry 4.0, which aims to create smart factories that improve the adaptability of the means of production, not only to produce more and better with lower ...
García Quintanilla, José Ignacio (Fecha de defensa: 2022-01-17)
With the increasing development of renewable energy sources and their integration into the grid, international standards require next-generation plants to achieve the same levels of reliability and performance as the current ...
Gomila González, Marcos (Fecha de defensa: 2016-06-07)
The nature of the SRM (Switched Reluctance Motor) makes this type of motor one of the candidates to investigate over the next few years. Its mechanical development is simple and inexpensive, but requires an electronic ...
Torrent Burgués, Marcel (Fecha de defensa: 2002-06-11)
En los últimos años, investigadores de diferentes laboratorios y universidades han mostrado un interés creciente en el estudio del motor de reluctancia autoconmutado (SRM). Aunque sus aplicaciones industriales son escasas ...
García Amorós, Jordi (Fecha de defensa: 2010-10-22)
In this study two electromagnetic analytical models have been developed. From this models the main magnetic and mechanics characteristics are obtained, and also permit getting the principal dimensions of the LSRM. From ...
Frias Valero, Eduardo (Fecha de defensa: 2004-11-12)
La existencia de máquinas eléctricas industriales desde finales del siglo XIX implica que es un sector de desarrollo maduro donde parecen difíciles nuevos conceptos de máquina, a no ser que el desarrollo de nuevos materiales ...
Massagues Vidal, Lluís (Fecha de defensa: 2001-07-27)
de Tesis Doctoral<br/><br/>Nos proponemos plantear un método de cálculo que nos permita la construcción de un motor de inducción magnetohidrodinámica, la impulsión de fluidos conductores por campos magnéticos.<br/><br/>El ...
Herraiz Jaramillo, Sergio (Fecha de defensa: 2002-07-03)
La distorsión armónica no es un fenómeno nuevo en los sistemas eléctricos de potencia, pero desde principios de los años setenta se ha convertido en un problema de creciente actualidad debido al incremento considerable de ...