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Estudo, análise e implementação de uma metodologia para otimização de rendimento em sistemas compostos por conversores em paralelo
(Universidade Federal de Santa Maria, 2014-09-05)
This PhD Dissertation proposes a new methodology for efficiency maximization in systems
comprising parallel converters. For a given number of system converters, their maximum
power and their efficiency curves, the proposed ...
Análise e projeto do reator eletrônico auto-oscilante para reconhecimento de lâmpadas fluorescentes
(Universidade Federal de Santa Maria, 2014-07-14)
This work presents the analysis and design of the self-oscillating electronic ballast to fluorescent lamps detection. The electronic ballast must be able to detect and run lamps with different power ratings, according to ...
Controle hierárquico e adaptativo para aumento do desempenho operacional de reguladores de tensão em redes elétricas inteligentes
(Universidade Federal de Santa Maria, 2014-03-28)
The evolution of equipment, new functions and control algorithms, supervisory systems, automation and smart grids offer to utilities numerous conditions for improving the voltage profile and the rational use of its equipment ...
Metodologia de projeto do conversor DAB aplicado a transformadores de estado sólido
(Universidade Federal de Santa Maria, 2014-08-01)
This thesis presents a design methodology for the dual active bridge converter, that includes the influence of the nominal phase-shift angle in the behavior of the DAB converter for entire power and voltage ranges. The ...
Controle adaptativo robusto combinado com regulador linear quadr atico aplicado a condicionadores de energia
(Universidade Federal de Santa Maria, 2014-09-05)
This work proposes an algorithm that combines two control laws with di erent
compensation characteristics in order to obtain a robust and high performance control:
A Linear Quadratic Regulator aided by a Kalman lter or ...
Um controlador adaptativo robusto aplicado a conversores estáticos conectados à rede elétrica através de filtro LCL
(Universidade Federal de Santa Maria, 2014-08-26)
This Thesis deals with the development of a novel robust model reference adaptive
controller (RMRAC), in discrete-time applied to grid-connected systems using LCL
filter. This controller uses a modified robust parameters ...