Now showing items 1-20 of 154

    Advance control of multilevel converters for integration of distributed generation resources into ac grid 

    Pouresmaeil, Edris (Date of defense: 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 ...

    Advanced modeling of solid state transformer 

    Adabi Firouzjaee, Mohammad Ebrahim (Date of defense: 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 ...

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

    Rakhshani, Elyas (Date of defense: 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 ...

    Analysis and design of fault tolerant axial flux permanent magnet synchronous motors 

    Saavedra Ordóñez, Harold (Date of defense: 2015-02-05)

    Electric vehicles (EVs) are attractive comparted to internal combustion engine powered vehicles due to several benefits, including low emissions, higher efficiency, less maintenance costs, stronger acceleration or lower ...

    Analysis and implementation of a methodology for optimal PMa-SynRM design taking into account performances and reliability 

    López Torres, Carlos (Date of defense: 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 . ...

    Analysis of power distribution systems using a multicore environment 

    Guerra Sánchez, Luis Gerardo (Date of defense: 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, ...

    Analysis of the contribution of wind power plants to damp power system oscillations 

    Domínguez García, José Luis (Date of defense: 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. ...

    Anàlisi experimental de la problemàtica de càrrega-descàrrega de ACEE aplicables en transports 

    Garrigosa i Garcia, Ramón (Date of defense: 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 ...

    Análisis de distorsión en el lado de red de convertidores alterna-continua con carga activa 

    Martínez Teixidor, Immaculada (Date of defense: 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 ...

    Análisis de la actividad de rayos y de tormentas relacionadas con la producción de rayos gamma terrestres 

    Fabró, F. (Ferran) (Date of defense: 2015-03-05)

    Terrestrial Gamma ray Flashes (TGFs) have been known since 20 years ago, but since the first moment of the discovery it was clear that they were related to lightning and thunderstorms. The latest studies revealed that TGFs ...

    Análisis de la evolución de la interoperabilidad y de la seguridad ferroviaria en Europa en el periodo 1991-2011 y propuestas de mejora 

    Ribes Ardanuy, Josep Maria (Date of defense: 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 ...

    Análisis y comparación de algoritmos de un PLL monofásico basados en un filtro paso todo digital 

    Belandria, Luciano Emilio (Date of defense: 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 ...

    Aplicación de las redes neuronales en los sistemas de control vectorial de los motores de inducción 

    Sowilam, Gamal (Date of defense: 2000-09-25)

    Últimamente se ha incrementado considerablemente la utilización de la inteligencia artificial en los campos de la electrónica de potencia y de los sistemas de control de la velocidad y del posicionamiento. Estos métodos, ...

    Aportaciones a los acondicionadores activos de corriente en derivación para redes trifásicas de cuatro hilos 

    Rodríguez Cortés, Pedro (Date of defense: 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 ...

    Aportaciones al análisis de faltas y técnicas de diagnostico en los accionamientos de reluctancia autoconmutados 

    Sánchez López, José Antonio (Date of defense: 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 ...

    Aportaciones al control corriente de convertidores VSC de sistemas eólicos conectados a redes eléctricas perturbadas 

    García Quintanilla, José Ignacio (Date of defense: 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 ...

    Aportaciones al control de la máquina de reluctancia híbrida HRM como motor y generador 

    Gomila González, Marcos (Date of defense: 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 ...

    Aportaciones al diseño y a la caracterización del motor de reluctancia autoconmutado 

    Torrent Burgués, Marcel (Date of defense: 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 ...

    Aportaciones al diseño y caracterización del motor lineal de reluctancia autoconmutado 

    García Amorós, Jordi (Date of defense: 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 ...

    Aportaciones al estudio de las máquinas eléctricas de flujo axial mediante la aplicación del método de los elementos finitos 

    Frias Valero, Eduardo (Date of defense: 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 ...