Buscar
Itens para a visualização no momento 1-10 of 32
Análise do carregamento de veículos elétricos na curva de carga do transformador de distribuição
(Universidade Federal de Santa Maria, 2017-12-04)
The objective of this dissertation is to evaluate the insertion of Electric Vehicles (EVs) on the distribution system. Motivated by the shortage of deterministic data regarding the process of charging EVs batteries, a ...
Algoritmo para cálculo e compensação da corrente capacitiva aplicado em relés diferenciais para proteção de linhas de ultra alta tensão
(Universidade Federal de Santa Maria, 2017-12-05)
Transmission lines have different characteristics and properties that define their parameters. One of the main components that is included in the modeling is the shunt capacitance. It generates a current that becomes ...
Análise e metodologia de projeto de conversores cc-cc isolados com comutação sob tensão nula: ponte-completa e duplo meia-ponte
(Universidade Federal de Santa Maria, 2017-08-10)
This work presents a study of an isolated DC-DC converter with zero-voltage switching (ZVS)
and phase-shifted (PS) applied to full-bridge (ZVS-PS-FB) and double half-bridge converters
(ZVS-PS-DHB). The double half-bridge ...
Circuitos de acionamento para lâmpada LED tubular utilizando conversores a capacitor chaveado
(Universidade Federal de Santa Maria, 2017-08-11)
This work presents the design, simulation and experimental development of a topology using switched capacitor to feed a LED lamp to street lighting. The designed and tested circuits aim to feed a LED tubular lamp with power ...
Concepção e desenvolvimento de um sistema eletrônico baseado em diodos emissores de luz para simulação de espectro
(Universidade Federal de Santa Maria, 2017-07-18)
This master thesis presents the conception and development of a lighting system based on lighting emitting diodes (LEDs) capable of accurately reproducing light spectra. The main motivation of this work is the development ...
Abordagem normalizada para conversores ressonantes
(Universidade Federal de Santa Maria, 2017-08-04)
Resonant converters reveal their excellence by means of the philosophy of shaping
the converters waveforms in a sinusoidal fashion, allowing soft-switching, increase
the operating frequency and reduce electromagnetic ...
Estudo e testes de desempenho de proteção de linhas de transmissão AC conectadas a sistemas HVDC – estudo de caso aplicado à LT Garabi2 - Santo Ângelo
(Universidade Federal de Santa Maria, 2017-07-14)
The present work it’s about an study of protection of AC transmission lines connected to high voltage direct current (HVDC) systems. First, it presents a theoretical foundation regarding the protection functions and ...
Estudo de algoritmos backstepping para o controle de correntes e estimação da velocidade rotórica em motores de indução trifásicos
(Universidade Federal de Santa Maria, 2017-06-19)
This master dissertation presents the development of current control strategies and
the development of rotor speed observers using Backstepping algorithms. The Backstepping
algorithm is a recursive method used for ...
Conversor eletrônico de alto fator de potência para alimentação de leds aplicando a técnica input current shaper
(Universidade Federal de Santa Maria, 2017-07-31)
This work presents analysis, simulation, design and implementation of an integrated topology consisting of two static DC-DC converters to supply power LEDs, presenting high power factor. Power factor correction is essential ...
DIFMA: firewall distribuído com ênfase na interoperabilidade entre aplicações no contexto das redes elétricas inteligentes
(Universidade Federal de Santa Maria, 2017-08-16)
The Electric Power System (EPS) has been improved in recent years, aiming at the implementation
of Smart Grids (SG). For this, it is essential to integrate information technologies
and bidirectional communication networks ...