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Mostrando ítems 81-90 de 359
Desenvolvimento de um controlador de tensão para um micro aerogerador para utilização em região urbana
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Eletrotécnica, 2014-08-14)
Wind energy is an abundant resource and is present in all regions of the Earth, yet its full use is restricted to the present available technology. In this academic paper is develop a microcontroller-based DC-DC converter ...
Desenvolvimento de inversor fotovoltaico conectado à rede elétrica com sistema de armazenamento de energia e isolamento galvânico
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Sistemas de EnergiaUTFPR, 2019-11-28)
This research presents the development of a multi-phase Boost DC-DC converter in cascade with a half-bridge DC-AC converter. An isolated DC-AC system for applications in photovoltaic systems with energy storage system was ...
Análise e simulação do conversor ponte completa ZVS com modulação por deslocamento de fase
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilDepartamento Acadêmico de EletrônicaEngenharia ElétricaUTFPR, 2019-07-05)
This work’s objective is to study a secondary-controlled full-bridge DC-DC converter, discuss its operation stages and describe mathematically its operation. The full bridge DC-DC converter with capacitive output and soft ...
Análise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 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 ...
Sistema de projetos otimizados de conversores estáticos (POCE) usando algoritmos genéticos
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2017-03-27)
Nowadays, there is a growing need for rational and efficient use of energy generated, be it traditional or renewable sources. Power electronics performs the interface between generation and consumption, allowing explore ...
Projeto e simulação de um carregador de baterias isolado
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de ElétricaEngenharia ElétricaUTFPR, 2015-11-25)
This work describes the design of a DC-DC converter used as an isolated battery charger. The specification of the power switches, converter modeling and its control are covered. It is used a Full-Bridge converter and the ...
Otimização do rendimento do conversor DAB aplicado ao transformador eletrônico
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2015-08-27)
This work developed a deep investigation about different three level three level
modulation patterns that the DAB converter can operate, and the impact of these different
patterns over the converter power flow and ...
A 12 kW three-phase low THD rectifier with high-frequency isolation and regulated DC output
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
High-performance control of a three-phase voltage-source converter including feedforward compensation of the estimated load current
(Pergamon-Elsevier Science Ltd, 2009-08)
In this paper a new control strategy for voltage-source converters (VSC) is introduced. The proposed strategy consists of a nonlinear feedback controller based on feedback linearization plus a feedforward compensation of ...