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Controle robusto baseado em desigualdades matriciais lineares aplicado a inversores conectados à rede elétrica
(Universidade Federal de Santa Maria, 2015-04-24)
This work provides as a main contribution a procedure to design robust state feedback
current controllers applied to inverters connected to the grid by means of LCL filters,
providing results which comply with performance ...
Desenvolvimento de uma família de reatores eletrônicos para lâmpadas fluorescentes sem eletrodos empregando a técnica de integração de conversores
(Universidade Federal de Santa Maria, 2012-11-30)
This paper presents the design and development of an electronic ballasts family
obtained through the use of the integration technique of converters for feeding the
electrodeless fluorescents lamps (EFL). This type of lamp ...
Novo conversor CC-CC integrado full-bridge-forward aplicado a uma microrrede residencial
(Universidade Federal de Santa Maria, 2013-02-07)
This Ph.D. Dissertation focuses on the proposal of a novel converter topology applied
to the connection of an energy storage system, composed of a supercapacitor bank and a
battery bank, to the dc bus of a residential ...
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 ...
Controle adaptativo robusto de estrutura variável por modelo de referência aplicado a filtros ativos de potência
(Universidade Federal de Santa Maria, 2010-08-27)
This works presents a Robust Variable Structure Model Reference Adaptive Control scheme denoted VS RMRAC. In this adaptive control strategy, each parameter of the control law is obtained by the sum of two other adaptive ...
Contribuição ao estudo do gerador de indução duplamente alimentado: operação durante distúrbios na rede elétrica
(Universidade Federal de Santa Maria, 2010-08-30)
The Doubly Fed Induction Generator (DFIG) is one of the most frequently deployed large grid connected Wind Turbines (WT) concept. The implementation of classical
vector control techniques, have been proven to work well for ...
Dinâmica da vegetação em remanescente de floresta estacional subtropical
(Universidade Federal de Santa Maria, 2012-01-12)
The aim of this work was to study vegetation groupings and their dynamics in
remnant of Subtropical Seasonal Forest, of nearly 560 ha, located at the Instruction
Field of Santa Maria, in Santa Maria municipality, RS. In ...
O processo de desenvolvimento das redes interorganizacionais
(Universidade Federal de Santa Maria, 2016-06-28)
The present study aims to understand the process of interorganizational networks development and to
move forward as theoretically as empirically on management field of networks. The
interorganizational networks were here ...
A relação de interdependência entre redes e empresas parceiras na evolução de redes interorganizacionais
(Universidade Federal de Santa Maria, 2016-08-22)
Cooperation between companies by networks can be seen as a mechanism for them to get the resources that they are missing. The fact to emphasize is that the resources offered by networks can become unique over time for ...
Tomada de decisão em contextos específicos: uma análise das relações entre os métodos multicritérios de apoio à decisão e as estratégias de decisão humana
(Universidade Federal de Santa Maria, 2016-06-27)
This thesis aimed to investigate the relationship between Multicriteria Decision Making methods and decision strategies used by individuals in the selection process in a specific context. Therefore, as a basis we took the ...