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Análise da tensão de restabelecimento transitória em disjuntor de alta tensão: estudo de caso em uma instalação elétrica industrial
(Universidade Federal de Santa Maria, 2021-06-29)
The electrical system is subject to several types of failure occurrences, short circuits and abnormal operating
conditions, thus producing transients in the network. For these reasons, it is essential that circuit ...
Controlador adaptativo preditivo robusto por modelo de referência aplicado a conversores estáticos conectados à rede de energia elétrica
(Universidade Federal de Santa Maria, 2021-09-23)
In this work, a discrete-time Robust Adaptive Predictive Model Reference Controller
is presented. The topology is based on the combination of the adaptive structure of
Robust Model Reference Adaptive Controller (RMRAC), ...
Metodologia para identificação de perdas não técnicas em unidades consumidoras localizadas em áreas rurais com cultivo de arroz irrigado
(Universidade Federal de Santa Maria, 2021-12-10)
Non-technical losses are one of the biggest problems faced by companies in the energy sector, since they directly affect the financial revenues of concessionaires, the security of electrical systems and the quality of ...
Desenvolvimento de um inversor fotovoltaico modular de fases reconfiguráveis
(Universidade Federal de Santa Maria, 2021-10-01)
This Master’s Thesis presents the development of a modular photovoltaic inverter with reconfigurable
phases. A power module to compose a modular photovoltaic inverter is proposed with
with the aim of creating hardware ...
Aplicação da técnica de test-driven design para a avaliação de algoritmos de modulação em conversores conectados à rede
(Universidade Federal de Santa Maria, 2021-07-06)
The thesis presents an approach to evaluate techniques in Grid-Tied Converters
using Test-Driven Design (TDD). It is done a review of the existent semiconductors in
the market to produce and manufacture Voltage Source ...
Proposta de um método para bloqueio do esquema regional de alívio de carga frente a inércia rotativa de desligamento dos motores de indução
(Universidade Federal de Santa Maria, 2021-02-26)
The Under Frequency Load Shedding (UFLS) is an important systemic protection method used to prevent the electrical system from collapsing when the available generation is less than the load demanded. Traditionally, UFLS ...
Análise e desenvolvimento de algoritmos backstepping aplicados ao controle de corrente de conversores conectados à rede
(Universidade Federal de Santa Maria, 2021-02-25)
This master thesis presents control strategies applied to converters connected to
the grid. Firstly, mathematical models are obtained, allowing a satisfactory representation
of the system. Therefore, control strategies ...
Metodologia para modelagem e análise de transitórios eletromagnéticos de unidades geradoras em sistemas de 525 KV
(Universidade Federal de Santa Maria, 2020-09-25)
The complexity of electrical systems instigates the need for increasingly complete analysis of elements belonging to the network. With the addition of elements in the system, to optimize the energy services offered, also ...
Estudo de caso com uma rede reduzida em baixa tensão, a dois condutores, alimentando cargas trifásicas indutivas e resistivas
(Universidade Federal de Santa Maria, 2021-09-30)
The importance and growth of agrobusiness in Brazil and the world requires the energetic sector to develop in such a way that it can keep up with and support the demand for electrical energy by eficient and economic means ...
Suavização da curva de carga elétrica usando armazenamento geotérmico para climatização residencial e comercial
(Universidade Federal de Santa Maria, 2021-08-13)
Air conditioning has a growing participation in electricity consumption in Brazil and worldwide. It presents the possibility of storage in moments of generation of energy surplus or low thermal load. This possibility can ...