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Metodologia para previsão de carga e geração no horizonte de curtíssimo prazo
(Universidade Federal de Santa Maria, 2016-08-31)
Load forecasting is a very important activity on electric power system operation and planning, because many studies on electricity sector depend on future behavior of the system, requiring the electricity demand forecast ...
Modelagem e simulação computacional de transformadores de potência para estudo de transitórios em altas frequências
(Universidade Federal de Santa Maria, 2016-08-18)
This paper presents a proposed the modeling of power transformers for high-frequency electromagnetic transients. The application of this model allows the evaluation of the windings behavior against the voltage surges imposed ...
Metodologia para reposição de serviço e gestão de carga em microrredes inteligentes
(Universidade Federal de Santa Maria, 2016-08-31)
This work presents the development of a methodology to service replacement and management loads in islanded smart grid by load shedding, supported by Distributed Generation, to avoid or reduce violations of continuity ...
Análise e controle de um conversor CA-CC com elevado ganho de tensão aplicado a um sistema de geração de micro-ondas
(Universidade Federal de Santa Maria, 2016-07-28)
This master thesis performs the analysis and design of an AC-DC converter with high voltage
gain to be used to supply a magnetron in a microwave generation system. The converter topology
is chosen so as to enable input ...
Projeto e desenvolvimento de um microinversor buck de elevado rendimento conectado à rede elétrica com filtro LCL
(Universidade Federal de Santa Maria, 2018-08-06)
Micro-inverters are small single-phase photovoltaic power generation modules that connect directly to
a photovoltaic panel and the electrical grid, which typically consist of a DC-DC stage and a DC-AC
stage. The topology ...
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 ...
Indicador de vulnerabilidade operacional para priorização e substituição de transformadores de potência em subestações
(Universidade Federal de Santa Maria, 2018-02-19)
This thesis presents a new methodology for the classification and substitution of power
transformers in substations. The thesis proposes the use of the Operational Vulnerability
Indicator (OVI), which consists of two ...
Estratégias multimalhas para controle de corrente de inversores conectados à rede por meio do filtro LCL
(Universidade Federal de Santa Maria, 2018-02-26)
This master thesis presents contributions to the study and development of current
control of the grid-tied inverter through an LCL filter, by using multiloop control strategies.
In the first proposed scheme, the inner ...
Sistema de controle para conversores modulares multiníveis utilizados em conexões HVDC de parques eólicos offshore
(Universidade Federal de Santa Maria, 2018-02-27)
This work presents a brief history of the wind generation system in general and
the detailed history of the offshore wind generation system. Current data on installed
capacity, power of used wind turbines and distance ...
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 ...