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Browsing Doutorado em Engenharia Elétrica (Teses) by Title

Browsing Doutorado em Engenharia Elétrica (Teses) by Title

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  • Mendonça, Isabela Miranda de; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4450864E4 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2016-08-19)
    This thesis presents a new strategy aimed at the search space reduction and initialization of the multimodal optimization process to solve the problem of static expansion planning of electric power transmission systems. ...
  • Casagrande, Cristiano Gomes; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4279381E6 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2016-04-14)
    The street lighting systems in Brazil are going through a time of significant changes that involve new paradigms, challenges and prospects for the sector. These changes begin with the transfer of street lighting assets ...
  • Costa, Luís Guilherme da Silva; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4458819U6 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2017)
    This work outlines a comprehensive review of PLC coupling circuits, which are required for narrowband and broadband PLC transceivers. Prevailing issues that protract the design of couplers and consequently subtended the ...
  • Barbosa, Davis Pereira; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4440233H7 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2017-03-17)
    This thesis proposes a new approach based on sparse representation for the energy estimation problem in high energy calorimetry operating in pile-up scenarios. This work was mainly motivated by the progressive increase of ...
  • Costa, Exuperry Barros; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4384833Y4 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2017-09-15)
    The present work proposes a novel methodology for Sub-Optimal Excitation Signal Generation and Optimal Parameter Estimation of nonlinear systems. It is proposed that the evaluation of each signal must to take into account, ...
  • Nogueira, Fernando José; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4493026P4 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2017-03-16)
    The main purpose of this research is the theoretical and experimental evaluation of the use of drivers switched at twice the frequency of the power grid, applied to street lighting luminaires utilizing light emitting diodes ...
  • Silva, Leandro Rodrigues Manso; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4428427P7 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2016-02-24)
    The present work presents the development of a method for power systems signal compression and decompression. The compression method is based in three stages: the novelty detection; the Lossy Compression based on the ...
  • Martins, Carlos Henrique Nascimento; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4759130J6 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2015-03-26)
    In this work is presented the steps of development and implementation of a Power Quality paramaters monitoring system with main goal events denomined ”time arying harmonics”named of Time Varying Harmonic Analyzer. The ...
  • Ferreira, Rodrigo Arruda Felício; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4262503A2 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2015-03-13)
    This work presents aspects related to DC microgrids, an alternative way of using renewable energy sources in a decentralized fashion. Whereas the maintenance of the microgrid main bus voltage, in which the sources and loads ...
  • Picorone, Antonio Angelo Missiaggia; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4138476P5 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2014-08-22)
    This dissertation aims at discussing the measurement and characterization of outdoor electric power grid of low voltage as communication medium (power line communication - PLC). Statistical analyses carried out on several ...
  • Moreira, Mariana Geny; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4260281E3 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2016-05-31)
    The power quality available on the electrical power system became focus in the last decades. This fact is explained by the combination of signal pollutions increasing and the number of electronic devices sensitive to ...
  • Poubel, Raphael Paulo Braga; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4457334D3 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2016-07-04)
    This work proposes a non-linear mixed integer model for dynamic transmission lines expansion planning. The DC load flow was used to represent the model. The basic equationsoftheDCloadflowweremodifiedandexpandedtoincludethed ...
  • Almeida, Pedro Machado de; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4423820A6 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2013-11-29)
    The current thesis contributes to the analysis, modelling and design of discrete time controllers which aim is to control a 30 kWp photovoltaic dispersed generation system connected to the electric grid without passive ...
  • Alves, Ana Sophia Cavalcanti; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4420920H7 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2012-11-27)
    This present work aims to apply and compare linear and nonlinear control techniques in attitude stabilization of a quadricopter. At first, is presented a aircraft dynamic model for simulation and control of the system. Then, ...
  • Valle, Rodolfo Lacerda; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4469766J9 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2017-02-02)
    This thesis presents the design and implementation steps of a digital predictive controller to regulate a low–inductance, three–phase, three–wire permanent magnet brushless DC (BLDC) motor currents. These types of motors ...
  • Aguiar, Eduardo Pestana de; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4236602D7 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2016-09-26)
    This thesis presents new fuzzy models applied to classification problems. With this regards, we introduce the use of set-membership concept, derived from the adaptive filter theory, into the training procedure of type-1 ...
  • Conceição, Wellington Carlos da; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4445486H6 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2016-12-12)
    The Brazilian power production system is a large scale hydrothermal system with a strong predominance of hydroelectric power plants. The electric power system operation planning must take into consideration several factors, ...
  • Ledesma, Jorge Javier Giménez; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4442849J6 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2017-02-12)
    This work proposes the development of numerical models and methods, based on artificial neural networks, for the detection and localization of high impedance faults in distribution systems. In parallel, the efficiency is ...
  • Prates, Mauro de Oliveira; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4105315E7 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2014-04-10)
    In this work, two methods based on the injection of controlled disturbances are proposed in order to evaluate characteristics of the Electrical Power System (EPS). The proposed methods perform the characterization of ...
  • Coelho, Francisco Carlos Rodrigues; http://lattes.cnpq.br/4481008684695993 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2018-02-22)
    The optimal Distributed Generation (DG) allocation problem consists in choosing the best locations of those distributed power plants at the distribution system, and to define its amount of power injection. The approach can ...