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Análise, projeto e desenvolvimento de sistemas multiníveis híbridos
(Universidade Federal de Santa Maria, 2005-03-21)
This Ph.D. Dissertation presents contributions to the study of hybrid multilevel systems, analyzing several issues that compose this system, such as: topological variations
of the output inverter stage and input rectifier ...
Desenvolvimento de métodos e algoritmos para avaliação e otimização da confiabilidade em redes de distribuição
(Universidade Federal de Santa Maria, 2005-06-17)
The distribution system is an extremely important part of the energy supply. At the same
time, distribution networks, most of them with radial configuration, are much more vulnerable
elements compared with transmission and ...
Controladores discretos de tensão baseados no princípio do modelo interno aplicados a inversores trifásicos PWM
(Universidade Federal de Santa Maria, 2005-12-09)
This thesis contributes to the analysis, project and implementation of discrete-time controllers based on the Internal Model Principle, aiming to improve the performance of three-leg three-phase PWM inverters with insulating ...
Bases experimentais para o projeto, automação e instalação de sistemas de geração de energia com células de combustível
(Universidade Federal de Santa Maria, 2005-09-15)
The main concern of this dissertation is the establishment of experimental bases for the project, automation, and installation of a micro-power plant for electric power generation based on PEM fuel cell stacks (BCS ...
Nova metodologia para a estimativa de capacitância e consumo de potência de portas lógicas complexas CMOS no nível lógico
(Universidade Federal de Santa Maria, 2005-10-31)
This dissertation presents a methodology of capacitance estimation and power consumption in CMOS circuits combinational constituted basically of complex logic gates at logic level. The main objective in the development of ...
Prototipação e análise de circuitos mutiplicadores array de baixo consumo
(Universidade Federal de Santa Maria, 2005-03-23)
This work presents the prototyping and analysis of new multiplier architectures under the physical level of abstraction. Circuits recently presented in the academic community are analyzed and compared against the state of ...
Rede de iluminação semicondutora para aplicação automotiva
(Universidade Federal de Santa Maria, 2005-02-28)
This work describes the design of a semiconductor lighting system applied to omnibus interiors. The system is composed by several lighting terminals, and some of them have different purpose, once an omnibus has different ...
Otimização de operação dos meios básicos de controle de tensão em sistemas de distribuição
(Universidade Federal de Santa Maria, 2005-06-17)
This dissertation presents methods and algorithms to increase use efficiency of basic voltage control equipment on power distribution systems and also models for secondary distribution networks. This basic voltage control ...
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 ...