Programa de Doctorat en Enginyeria Electrònica: Enviaments recents
Ara mostrant els elements 21-40 de 207
Una nueva perspectiva del modelado y control de microrredes eléctricas y convertidores de potencia
(English) This doctoral thesis focuses on the modeling and control of electrical microgrids and triphasic converters. The starting points of this research work are based on previous work on modeling electrical microgrids ...
Contactos selectivos de portadores basados en óxidos metálicos de transición para células solares de kesterita
(English) In recent years, there has been an increasing need to find an environmentally friendly and low-pollution alternative for electricity production through solar energy absorption. Since 1950, photovoltaic researchers ...
Energy management in collaborative power electronics-based microgrid integrated with renewable energies
(English) This thesis is introduced the research performed on microgrid applications, especially in cooperative operating mode. The research is conducted considering two main challenging aspects of microgrid operation over ...
Development of an active power filter based on wide-bandgap semiconductors
Electrical and electronic equipment needs sinusoidal currents and voltages to function properly. Equipment such as computers, household appliances, electric vehicle chargers, and LED lights can distort the grid and worsen ...
Design and implementation of rural microgrids : Laguna Grande case study
In 2015 the United Nations established the 17 Sustainable Development Goals: a set of interrelated objectives and a guide to reach a more sustainable and higher quality future for all humanity. The goals were set with a ...
Simulació 2D/3D de cèl.lules solars de silici de contactes posteriors
In order to optimize photovoltaic conversion efficiency, various solar cell architectures based on monocrystalline silicon (c-Si) have emerged in the past. Solar cells with interdigitated back contacts IBC (Interdigitated ...
Textile UHF-RFID antenna sensors based on material features, interfaces and application scenarios
Radio frequency identification over measurable ultra-high frequency textile substrates (UHF-RFID) is a promising technology to develop new applications in the field of health and the Internet of Things (IOT), due to the ...
Novel metal insulator metal capacitors based on electrosprayed colloidal nanoparticles
This work develops a novel capacitor device based on the use of nanotechnology. The device starts from the exiting metal-insulator-metal (MIM) concept, but instead of a continuous insulator layer, dielectric nanoparticles ...
Timed array antenna system : application to wideband and ultra-wideband beamforming receivers
Antenna array systems have a broad range of applications in radio frequency (RF) and ultra-wideband (UWB) communications to receive/transmit electromagnetic waves from/to the sky. They can enhance the amplitude of the input ...
Design, fabrication, characterization and reliability study of CMOS-MEMS Lorentz-Force magnetometers
Today, the most common form of mass-production semiconductor device fabrication is Complementary Metal-Oxide Semiconductor (CMOS) technology. The dedicated Integrated Circuit (IC) interfaces of commercial sensors are ...
Design and implementation of wireless nodes for the Internet of Things
The Internet of Things is a trending topic these days. However, energy is often the major job stopper for broad adoption of this technology, which have three tight constraints: extremely cost oriented, long service life ...
Contributions to the design of energy harvesting systems for autonomous sensors in low power marine applications
Oceanographic sensor platforms provide biological and meteorological data to help understand changes in marine environment and help to preserve it. Lagrangian drifters are autonomous passive floating platforms used in ...
Métodos objetivos estadísticos de valoración de la magnitud de interés en base a las trayectorias de dirección de visionado
In this work, a new method is presented to quantify the attention paid by people to the different objects in their environment. The new metric models the eye to determine the attention given and quantifies that attention ...
Infrared optical filters based in macroporous silicon for espectroscopic gas detection
Gas detection is of great importance in areas as diverse as industry, health or safety in domestic environments or public spaces, among others, and it is highly specific to each application. The detection method depends ...
High efficiency sensorless fault tolerant control of permanent magnet assisted synchronous reluctance motor
In the last decades, the development trends of high efficiency and compact electric drives on the motor side focused on Permanent Magnet Synchronous Machines (PMSMs) equipped with magnets based on the rare-earth elements. ...
Simulation and design of all-optical logic gates based on photonic crystals
In this thesis, design and simulation of optical logic gases based on different photonics crystals presented to used in the electronics and telecommunication industries. Optical devices perform faster with higher efficiencies ...
Marine sensor interoperability applied to in situ ocean sound processing
There has always been background sound in the oceans due to natural factors. However, since the first hydrophone deployments at mid-20th century, measured ocean sound levels have been steadily rising due to an increment ...
Digital hardware architectures for beam synchronous processing and RF of synchronization of particle accelerators
In Particle Accelerators, the Low-Level RF (LLRF) is the control system of the RF, and in the end, of the purpose of the machine, that is the energy transfer and acceleration of particles. It implements algorithms synchronizing ...
Low-power read-out ICs for smart electrochemical sensors
Electrochemical sensors are expanding rapidly over other chemical sensoring technologies because of their potential to generate precise, selective, miniaturized and cost-effective analytical devices. These features satisfy ...
High performance readout circuits and devices for Lorentz force resonant CMOS-MEMS magnetic sensors
In the last decades, sensing capabilities of martphones have greatly improved since the early mobile phones of the 90’s. Moreover, wearables and the automotive industry require increasing electronics and sensing sophistication. ...
