Buscar
Itens para a visualização no momento 421-430 of 3379
Modelagem e controle do conversor DAB para interface entre banco de baterias e sistema elétrico de potência
(Universidade Federal de Santa Maria, 2017-08-07)
This Master's Dissertation presents the development of a Dual Active Bridge (DAB) converter for charging a battery bank, which is connected to a DC bus, which is connected to the electric power system by means of an inverter. ...
Projeto e análise de observadores adaptativos aplicados ao controle sensorless de máquinas síncronas de ímãs permanentes
(Universidade Federal de Santa Maria, 2018-08-06)
This master dissertation presents contributions to the study, development, and design
of adaptive observers applied to the estimation of rotor speed of permanentes magnet
synchronous machines. The rst proposed technique ...
Degradação de fármacos em efluente de uma estação de tratamento de esgoto sanitário utilizando processos avançados
(Universidade Federal de Santa Maria, 2018-10-18)
The high worldwide consumption of remedies, coupled with the incomplete assimilation by animals
and humans and the deficient removal by conventional effluent treatment systems, made the
pharmaceuticals a persistent group ...
Diretrizes de gestão organizacional com ênfase na qualidade para uma empresa metalmecânica
(Universidade Federal de Santa Maria, 2018)
The present research aimed to develop guidelines for organizational management with emphasis on quality for a small metalworking company located in the city of Brusque, Santa Catarina
state. Most small companies have ...
Identificação e caracterização de materiais para redução do efeito da abrasividade em sistemas mecânicos agrícolas
(Universidade Federal de Santa Maria, 2018)
Agricultural activity in Brazil is responsible for 23% of the Gross Domestic Product,
and is inserted in the primary sector of the economy, which is characterized by the
exploitation of natural resources, and the sector ...
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, ...
Adaptação de usina para reciclagem à quente e avaliação laboratorial das misturas asfálticas produzidas
(Universidade Federal de Santa Maria, 2019-05-30)
Brazilian asphalt pavements have suffered over the years, with the increasing volume
of traffic, structural and functional deficiencies requiring continuous maintenance,
affecting, also, the comfort and safety of users. ...
Controle de demanda e formação de microrredes com grupos moto-geradores distribuídos
(Universidade Federal de Santa Maria, 2019-04-16)
The present work developed a methodology that was applied in a study that had as a starting point the peak shaving of an electrical installation, aiming at the reduction of costs with the energy bill. To achieve this, the ...
Desenvolvimento de um compósito de resíduo de poliuretano e casca de arroz
(Universidade Federal de Santa Maria, 2019-05-23)
Composites made from renewable sources are replacing commonly used materials in various industrial segments, fully meeting their functional and aesthetic requirements demanded by the products. Focusing on techniques, ...
Inversor multiníveis quasi-Z-source com fonte CC única e compartilhamento de potência ativa entre os módulos
(Universidade Federal de Santa Maria, 2019-07-26)
Due to its ability to provide Maximum Power Point Tracking (MPPT) control and independent
regulation of the DC bus voltage, this makes the inverter quasi-Z-Source (qZS) an attractive
candidate for applications in ...