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Empreendedorismo e desenvolvimento do turismo: caso Caçapava do Sul
(Universidade Federal de Santa Maria, 2005-04-25)
Tourism as an economical activity should be exploited wisely to support the social, cultural, economic, and environmental aspects. It is of importance to have some knowledge on this area when exploiting tourism, which is ...
Projeto automático de controlador de velocidade sem sensor mecânico para motores de indução trifásicos
(Universidade Federal de Santa Maria, 2008-08-27)
This works proposes parameters estimation algorithm to auto-tune the control
laws of a speed sensorless servo. The identification process of the electrical and
mechanical parameters is based on recursive least squares ...
Projeto e desenvolvimento de uma fonte de potência CA trifásica a quatro fios
(Universidade Federal de Santa Maria, 2006-04-06)
This work presents a contribution to the study of AC Power Sources, where a prototype s development is
presented. The stages that compose the system, including converter topology, filter, instrumentation and
controller, ...
Estudo, modelagem e controle de uma micro central hidrelétrica com utilização de gerador de indução auto-excitado
(Universidade Federal de Santa Maria, 2012-01-30)
In the last decade there has been a significant increase in interest in microgeneration
technologies for electric power. Sources of hydraulic power generation, wind and solar
technologies represent some of the important ...
Diferentes tipos de telhados verdes no controle quantitativo da água pluvial
(Universidade Federal de Santa Maria, 2013-09-27)
Because of the rapid process of population increase in urban centers and the consequent soil
waterproofing, the draining systems of rain water are insufficient because of the increasing
superficial outflow, output peaks ...
Desenvolvimento de métodos de testes para caracterização de ADCS do tipo Σ∆
(Universidade Federal de Santa Maria, 2019-07-10)
The present work of conclusion of course approaches the implementation of test
methods for characterization of Sigma-Delta type ADCs. For the construction and vali-
dation of such methods, circuits modeled in the Matlab ...
Ações para melhoria da satisfação dos clientes em uma cooperativa de crédito
(Universidade Federal de Santa Maria, 2009-01-01)
This dissertation has for objective to present actions of improvement of satisfaction customers in a Cooperative of Credit. The research was accomplished with associated, employees and the director the Cooperative, located ...
Análise, projeto e implementação de um arranjo flexível de conversores estáticos para sistemas de conversão de energia eólica conectados à rede
(Universidade Federal de Santa Maria, 2013-07-29)
This Thesis deals with the analysis, design and implementation of a flexible arrangement
of static converters for grid connected Wind Energy Conversion Systems (WECS). The
main features of the proposed flexible arrangement ...
Uma sistemática de gestão e controle interno para cooperativas do Rio Grande do Sul: um estudo de caso
(Universidade Federal de Santa Maria, 2013-08-08)
Significant changes in market behavior arouse the need to adopt new processes and
management tools in order to make organizations more competitive and sustainable. Tálamo
and Carvalho (2004) to denote the creation of a ...
Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
(Universidade Federal de Santa Maria, 2012-09-28)
This thesis addresses the main issues regarding the operation of full power converters
wind turbines connected to the grid under balanced and unbalanced voltage sags.
In the past, the grid codes allowed wind turbines to ...