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Metodologia para análise de impactos associados a elevada inserção de microgeração fotovoltaica em redes secundárias de distribuição
(Universidade Federal de Santa Maria, 2020-09-28)
In recent years, there has been an exponential growth in the number of photovoltaic installations, mainly in secondary distribution systems, as a result of the beginning of the modernization of the electricity sector, based ...
Multiplicação sincronizada da frequência de geradores elétricos acionados por fontes primárias com fluxos de baixa velocidade
(Universidade Federal de Santa Maria, 2020-09-30)
This dissertation proposes a way to increase the frequency of electric machines driven by alternative sources with low speed of the driving fluid, such as wind and water. This work presents a technique for multiplying ...
Requisitos dinâmicos de controle para o estágio de conversão C.C.-C.C. aplicado em sistemas fotovoltaicos
(Universidade Federal de Santa Maria, 2020-11-26)
Photovoltaic systems (PVs), in their usual condition, are controlled to track the maximum power point (MPP) in a natural solar dynamic. However, with the cheapness of solar energy and its integration with the most diverse ...
Desenvolvimento de uma estação de recarga modo 3 para veículos elétricos
(Universidade Federal de Santa Maria, 2020-10-02)
The amount of electric vehicles (EV’s) sold annually has grown exponentially over the last decade around the world, and one of the main questions for customers interested in pur- chasing an EV is how they can recharge their ...
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 ...
Análise de atuação indevida do ERAC em desenergização de subestação, influenciada pela desaceleração de motores e proposta de lógica utilizando a função ANSI 81U com dois estágios de tensão de bloqueio e temporização
(Universidade Federal de Santa Maria, 2020-09-30)
The stability of the SEP is a major concern for System Operators worldwide. Several actions and controls are taken when a major disturbance occurs, with the aim of finding a new balance point, minimizing the disconnection ...
Análise de geração distribuída para consumidores no mercado livre de energia
(Universidade Federal de Santa Maria, 2020-12-10)
The present review is a graduation conclusion study in eletrical engeneering that aims to treat the subjects about the brazilian free market of energy and its changes for the year 2021, the distribuited generation and its ...
Novo conjunto de indicadores de desempenho operacional para redes elétricas inteligentes por meio da Lógica fuzzy
(Universidade Federal de Santa Maria, 2020-08-14)
Operational performance analysis is a multidisciplinary tool that allows the engineering systems manager to control the quality of services provided, as needed. For this operational tool to be effective, it is necessary ...
Análise comparativa das técnicas clássicas de MPPT
(Universidade Federal de Santa Maria, 2020-08-21)
Firstly, a study is done on the panorama of electric energy, in order to present the main benefits of using solar photovoltaic energy. Subsequently, the photovoltaic panels (PVs) are analyzed, through the equivalent ...
Desenvolvimento de aplicativo para definição da melhor modalidade tarifária para consumidores do grupo B
(Universidade Federal de Santa Maria, 2020-08-27)
Low voltage consumers are responsible for the higher costs of expansion of the Brazilian electrical system, due to the high concentration of energy consumption between 6 pm and 9 pm.
This is due to the fact that these ...