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Three-phase four-wire circuits interpretation by means of different power theories
(2010-08-23)
In order to contribute to the discussion of defining a generalized power theory, valid for unbalanced and non linear circuits, this paper discusses the relationship and discrepancies among four modern power theories. ...
Three-phase four-wire circuits interpretation by means of different power theories
(2010-08-23)
In order to contribute to the discussion of defining a generalized power theory, valid for unbalanced and non linear circuits, this paper discusses the relationship and discrepancies among four modern power theories. ...
Desenvolvimento de um microinversor conectado à rede baseado na integração do conversor Cuk com uma estrutura de indutores chaveados
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2017-08-30)
The development of a novel single stage microinverter is proposed. The presented topology is based on the combination of the Cuk converter with a switched inductor structure to obtain a higher static gain, and a full-bridge ...
Analysis of the Transformer Influence on a Three-Phase Dual Active Bridge DC-DC Converter
(Institute of Electrical and Electronics Engineers, 2016-07)
In this work, the impact of the high-frequency transformer on the three-phase dual active bridge DC-to-DC converter operation is investigated, using four transformers with different connections: star-star, delta-delta, ...
Modulation strategy to operate the dual active bridge DC-DC converter under soft-switching in the whole operating range
(Institute of Electrical and Electronics Engineers, 2011-04)
A new modulation strategy that allows operating the dual active bridge (DAB) dc–dc converter under soft switching in the whole operating range is proposed. This strategy is ruled by imposing a certain modulation index in ...
Power Factor Correction Boost Converter Based on the Three-State Switching Cell
(Institute of Electrical and Electronics Engineers (IEEE), 2012-03-01)
The need for solid-state ac-dc converters to improve power quality in terms of power factor correction, reduced total harmonic distortion at input ac mains, and precisely regulated dc output has motivated the investigation ...
Power Factor Correction Boost Converter Based on the Three-State Switching Cell
(Institute of Electrical and Electronics Engineers (IEEE), 2012-03-01)
The need for solid-state ac-dc converters to improve power quality in terms of power factor correction, reduced total harmonic distortion at input ac mains, and precisely regulated dc output has motivated the investigation ...
Módulo para gerenciamento de pré-carga de capacitores
(Universidade Tecnológica Federal do ParanáToledoBrasilEngenharia EletrônicaUTFPR, 2019-12-12)
This project presents a capacitor pre-charge and discharge system, based on a soft-start strategy with a step-down DC-DC converter. The system aims to mitigate the inrush current effect on a step-up converter. The inrush ...
Retificador trifásico isolado com correção do fator de potência utilizando um autotransformador e dois retificadores monofásicos de estágio único
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2017-08-17)
This work presents a three-phase isolated rectifier with power factor correction using a Scott autotransformer and two isolated single-phase single-stage (S2) rectifiers. The Scott autotransformer provides a phase reduction ...