Buscar
Itens para a visualização no momento 491-500 of 910
Controle adaptativo robusto combinado com regulador linear quadr atico aplicado a condicionadores de energia
(Universidade Federal de Santa Maria, 2014-09-05)
This work proposes an algorithm that combines two control laws with di erent
compensation characteristics in order to obtain a robust and high performance control:
A Linear Quadratic Regulator aided by a Kalman lter or ...
Despacho econômico multiárea descentralizado considerando a participação de agregadores privados locais usando o método meta-heurístico
(Universidade Federal de Santa Maria, 2022-01-20)
The power systems operation has been mostly based on centralized solutions. In the recent time however, the power system economic models are changing because of the inclusion of new private participants in the system and ...
Microinversores baseados na topologia meia-ponte isolada alimentada em corrente
(Universidade Federal de Santa Maria, 2018-07-25)
The Microinverter is an inverter sized to meet individual solar panels, usually consisting of two stages, one DC-DC stage and another CC-AC stage. For the first stage of the DC link microinverter, the isolated current-fed ...
Metodologia de priorização de investimentos em modernização de equipamentos de proteção e manobra de subestações de distribuição
(Universidade Federal de Santa Maria, 2017-08-24)
The continuous and reliable supply of energy becomes a necessity of modern society, therefore, it is expected that its restoration is as fast as possible in any interruptions, and that it will reach the smallest possible ...
Sistema de controle para motores BLDC utilizando técnica six step com controle de velocidade visando tração veicular
(Universidade Federal de Santa Maria, 2021-02-10)
Climate changes and the increased focus on the use of renewable resources rekin dled the internacional comunity’s interest in electrical traction as a counterpoint to the popular internal combustion systems. Over the last ...
Projeção da difusão da geração distribuída fotovoltaica para consumidores comerciais conectados à rede de baixa tensão
(Universidade Federal de Santa Maria, 2022-04-08)
Incentives for renewable sources have provided a high growth of distributed photovoltaic generation (GDFV) in the Global electric matrix. Therefore, it is essential that current planning practices are ready to operate, ...
Estudo e aplicação de conversor multinível híbrido com uma única fonte CC
(Universidade Federal de Santa Maria, 2013-03-07)
This study proposes a modulation strategy based on geometric approach for a hybrid multilevel converter with single dc voltage source. This multilevel converter is composed of a three-phase three-level multilevel converter ...
Sistema para resposta da demanda de cargas residenciais baseado em nuvem
(Universidade Federal de Santa Maria, 2022-08-03)
The utility’s primary goal is to keep the electrical system operating normally, with as few
faults as possible. This directly reflects the relationship between energy production and
consumption. Demand always has to be ...
Metodologia de otimização de conversores estáticos com paralelismo de células boost aplicado à célula a combustível
(Universidade Federal de Santa Maria, 2019-02-28)
This thesis presents an optimized design methodology for non-isolated static converters with Nboost
cells in parallel, that process energy between a renewable energy source and a DC bus. The
method scans for the best ...
Matriz lógico-estrutural: análise do alocamento de equipamentos de proteção e os impactos nos indicadores de confiabilidade
(Universidade Federal de Santa Maria, 2021-09-03)
The National Electric Energy Agency (ANEEL) has progressively applied stricter regulations regarding the quality of energy supplied to consumers. Continuity limit indicators (DEC and FEC) are gradually reduced in order to ...