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Gerador de indução isolado com tensão e freqüência reguladas por conversor matricial esparso
(Universidade Federal de Santa Maria, 2008-06-30)
The induction generator has characteristics making it interesting for alternative sources of energy, such as low cost, ruggedness, low maintenance, high availability and good dynamic behavior. So, it is very much applied ...
Servocontrole de velocidade aplicado a motores de indução monofásicos sem sensores mecânicos
(Universidade Federal de Santa Maria, 2008-10-31)
This work proposes a sensorless speed control applied to single-phase induction motors
(SPIM). The objective is to present an alternative for variable speed single-phase motor
drives for residencial applications, which ...
Controle de velocidade sensorless de motores de indução trifásicos sujeitos a distúrbios de torque
(Universidade Federal de Santa Maria, 2008-10-31)
This work presents a study of a sensorless speed servomechanism using threephase
induction motors. The aim is to investigate the performance of a specific control
technique when different load variations or torque ...
Contribuição ao controle de inversores PWM alimentados em tensão conectados à rede através de filtro-LCL
(Universidade Federal de Santa Maria, 2008-03-28)
This dissertation deals with the design of a robust current control loop applied to voltage source inverters connected to the grid thought LCL-filter used in distributed generation systems. The utilization of the LCL-filter ...
Modelagem, projeto e implementação de um conversor isolado com um único estágio e correção do fator de potência.
(Universidade Federal de Santa Maria, 2008-04-16)
This Master Thesis presents a new analysis, modeling and design guideline for an Insulated Power Factor Corrected Single-Stage Converter. First, the operating principle is
presented which provides a better understanding ...
Controle de aceleração de uma máquina de vibração eletrodinâmica
(Universidade Federal de Santa Maria, 2005-03-24)
This work presents the development of a novel digital acceleration controller for sinusoidal vibration tests using switching-mode AC power source (ACPS) fed electrodynamic vibration machines. The proposed scheme is based ...
Bases teóricas e experimentais para o gerenciamento da demanda em prédios públicos de ensino: o caso da Universidade Federal de Santa Maria
(Universidade Federal de Santa Maria, 2009-08-10)
This work presents the results from the analysis of the behavior of demand and energy consumption in the Campus of the Universidade Federal de Santa Maria to contribute to the adoption of strategic plans for demand side ...