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Itens para a visualização no momento 1-10 of 32
Projeto de conversores estáticos fazendo uso de uma metodologia de minimização de volume/perdas/custo
(Universidade Federal de Santa Maria, 2013-08-29)
This thesis presents a new optimization design methodology for power electronics
converters with volume, cost and efficiency objectives. The optimization methodology,
achieved by mathematical interactions, is based on the ...
Proposta de uma metodologia para o tratamento de alarmes e diagnóstico de falta em centros de operação e controle de sistemas de potência
(Universidade Federal de Santa Maria, 2013-03-07)
This dissertation proposes a methodology for alarm processing aiming to solve the fault section estimation in electrical power system. The main motivation for this study is the fact that operators of control centers being ...
Programação inteira binária aplicada na coordenação da proteção de sistemas elétricos de potência
(Universidade Federal de Santa Maria, 2016-09-30)
This paper presents an innovative approach to coordinate typical protection devices of transmission, subtransmission and distribution systems – fuse links and functions ANSI 21, 67, 87, 50 and 51. The settings obtained by ...
Otimização, seleção e apontamento de arranjos lineares de antenas através da técnica de otimização por enxame de partículas
(Universidade Federal de Santa Maria, 2017-02-24)
The Particle Swarm Optimization Technique has been widely studied by researchers,
since they act as a stochastic optimization process which can be applied in many areas, for
instance in electromagnetism. Researches have ...
Análise de modelos matemáticos para o problema de marketing direto com oferta de produtos
(Universidade Federal de Santa Maria, 2019-03-15)
The increasing complexity of modern business environments and the vast volume of data available
make it necessary to use advanced models and computerized methods in organizations. With
competitiveness increasing rapidly, ...
Aplicação de método de deslocamento de carga para sistemas de gerenciamento de energia
(Universidade Federal de Santa Maria, 2019-12-20)
In the context of expected advances with the implementation of smart grids and considering
the modernization of the forms of the electricity billing system in the relationship between
user and manager of the electric ...
Metodologia para priorização de investimentos em redes de distribuição de energia elétrica com foco em ganhos operacionais e financeiros
(Universidade Federal de Santa Maria, 2015-03-13)
The current scenario of the Brazilian electricity sector, through the constant and recent regulatory changes imposed by ANEEL in recent years, aims to ensure continuous improvement in quality standards in the provision of ...
Metodologia para análise da confiabilidade no planejamento de sistemas de distribuição utilizando matrizes lógicoestruturais
(Universidade Federal de Santa Maria, 2016-08-19)
With the constant requirement for improving the levels of quality and reliability
in the power distribution systems, especially with regard to the quality of service
(duration and frequency of outages), it has intensified ...
Modulação vetorial otimizada para o conversor packed U-cell
(Universidade Federal de Santa Maria, 2020-09-24)
This master’s dissertation proposes space vector modulation strategies for the Five-Levels Packed
U-Cell converter with optimization on the commutation number and balance of the floating
capacitors by use a cost function. ...
Contribuições ao projeto de controladores robustos a variações paramétricas aplicados a conversores conectados à rede
(Universidade Federal de Santa Maria, 2021-05-12)
This Ph.D. thesis provides contributions to the design of robust current controllers
for grid-connected converters, including: i) a time-varying model to deal with the
magnetic soft saturation in the filter inductors and ...