Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 15 of 15 for “"Electrical & electronics engineering"”.
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Model Order Reduction: Application to Electromagnetic Problems
With the increase in computational resources, numerical modeling has grown expo- nentially these last two decades. From structural analysis to combustion modeling and electromagnetics, discretization methods–in particular the finite element method–have had a tremendous impact. Their main advantage …
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On-line Dynamic Security Assessment in Power Systems.
The thesis concerns the development of tools and methods for on-line dynamic security assessment (DSA). In a future power system with low-dependence or even independence of fossil fuels, generation will be based to a large extent on non-controllable renewable energy sources (RES), such as wind and …
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Audiovisual spatial congruence, and applications to 3D sound and stereoscopic video
While 3D cinema is becoming increasingly established, little effort has focused on the general problem of producing a 3D sound scene spatially coherent with the visual content of a stereoscopic-3D (s-3D) movie. The perceptual relevance of such spatial audiovisual coherence is of significant …
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Modélisation du comportement non-linéaire d’un haut-parleur pour sonorisation instrumentale
Pour un guitariste, le haut-parleur qu’il utilise fait partie intégrante de sa chaı̂ne d’instrumentation, au même titre que son ampli, ses effets ou sa guitare. Le haut-parleur agit comme un filtre constitué d’un grand nombre de subtilités qu’il est fort difficile de copier même à l’aide d’un …
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MEMS MULTI-DOF WEAKLY COUPLED RESONATOR BASED ON MODE LOCALIZATION FOR MASS CHANGE SENSING APPLICATIONS
This thesis comprehensively explores the potential of a 3-DOF mode localized weakly coupled resonator. A novel reversible method which exploits the usage of nanoparticles as well quantified mass changes is described. The mass sensitivity of the coupled resonator can be characterized accordingly. It …
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Preventive assessment and enhancement of power system voltage stability: an integrated approach of thermal and voltage security
This thesis is devoted to the preventive assessment and enhancement of voltage stability and security in electric power systems. However, in the course of deriving all the proposed methods we have paid attention to keeping them compatible with the (more traditional) handling of thermal overloads, …
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Shape and Topology Optimization for electro-mechanical energy converters
… chanical energy converters, in particular electrical rotating machines, at the lowest possible cost. The use of modern power electronics converters at all levels of elec- trical power applications, involves, on the other hand, switching components with very low switching times and always …
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Modélisation du champ magnétique et des courants induits dans des systèmes tridimensionnels non linéaires
Notre recherche consiste en l’étude et le développement de modèles mathématiques et numériques tridimensionnels destinés à l’analyse de problèmes de l’électromagnétisme, et en particulier de problèmes de l’électrotechnique. Ces modèles doivent permettre le calcul de la répartition …