Buscar
Mostrando ítems 51-60 de 392
Multilevel shunt active filter based on voltage detection
(2020)
Esta dissertação apresenta a modelagem, o projeto, a análise de estabilidade e o ajuste de controladores de um conversor multinível de ponte-H em cascata (CHB), operando como um filtro ativo em derivação (shunt), utilizando ...
Contribuição ao estudo de estratégias de modulação aplicadas a conversores multiníveis com diodos de grampeamento
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2009-04-30)
This dissertation deals with modulation techniques for multilevel diode clamped converters.
The major challenge to be overcome by modulation strategies to these converters
is the balance of the dc-link voltage capacitors, ...
Large cation-selective pores from rat liver peroxisomal membranes incorporated to planar lipid bilayers
(1986)
Fusion of a highly purified fraction of rat liver peroxisomal membranes to planar lipid bilayers incorporates large, cation-selective voltage-dependent pores. ThePK/PCl ratio of these pores, estimated in KCl gradients, is ...
Step Down DC/DC converter for Micro-Power Medical Applications
(Springer, 2016-12)
In this work, a micropower step down DC/DC converter aimed at reducing the supply voltage in implantable medical devices is presented. The circuit was designed and fabricated in a 0.6 µm technology. The DC/DC converter was ...
Low-Voltage Polarization in AOT Solution to Enhance the Corrosion Resistance of Nitinol
(Springer, 2021-03)
In this work, the corrosion behavior of bare nitinol (NiTi) alloy in Ringer's solution containing different concentrations of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) was first studied in order to determine whether ...
Sistema fotovoltaico utilizando um conversor monofásico-trifásico com condicionamento ativo de energia para aplicações em redes monofásicas rurais
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia de Controle e AutomaçãoUTFPR, 2016)
This work proposes a photovoltaic system connected to an inverter with single-phase input and three-phase output, with universal filtering capabilities. This system is able to inject the energy extracted from the photovoltaic ...
IDA-PBC controller design for grid connected Front End Converters under non-ideal grid conditions
(Elsevier Science Sa, 2017-01)
A passivity-based non-linear controller design for three-phase front-end converters used to connect renewable energy sources to the grid is proposed in this paper. The control objective is to inject all the generated power ...