Retrofitting technique to improve voltage sags ride-through capability of ASD using SEPIC rectifiers

AV Costa, DB Rodrigues, GB Lima… - … Annual IEEE Applied …, 2012 - ieeexplore.ieee.org
The main cause of ultimately arrest in automated systems, which use adjustable speed
drives (ASDs), are temporary voltage sags. Based in this context, this paper presents an …

Retificador Trifásico Híbrido Operando Com Controledigital e Modulação por Histerese

JO Soares, CA Canesin, LC de Freitas… - Eletrônica de …, 2008 - journal.sobraep.org.br
Neste artigo uma modulação por histerese digital é proposta e analisada usando dispositivo
FPGA (Field Programmable Gate Array) e linguagem VHDL (Hardware Description …

Hybrid three-phase rectifier with high power factor and voltage sags ride-through capability for utility inteface of adjustable speed drives

AV Costa, DB Rodrigues, LC de Freitas… - XI Brazilian Power …, 2011 - ieeexplore.ieee.org
Temporary voltage sags are the main cause of untimely arrest in automated systems that
use adjustable speed drives (ASDs). In this context, this paper presents an analysis of a new …

Programmable PFC based hybrid multipulse power rectifier with sinusoidal input line current imposed by digital controller

LCG de Freitas, F Vincenzi, MAA Freitas… - APEC 07-Twenty …, 2007 - ieeexplore.ieee.org
This paper presents an improved analysis of a novel Programmable PFC Based Hybrid
Multipulse Power Rectifier (PFC-HMPR) for utility interface of power electronics converters …

Hybrid high-power rectifier with reduced THDI and voltage sag ride-through capability

AV Costa, DB Rodrigues, LC de Freitas… - 2011 IEEE Industry …, 2011 - ieeexplore.ieee.org
Temporary voltage sags are the main cause of untimely arrest in automated systems that
use adjustable speed drives (ASDs). In this context, this paper presents an analysis of a new …

Proposal of a hybrid rectifier structure with HPF and low THD suitable for front-end trolleybuses systems supplied by AC distribution networks

LCG Freitas, GB Lima, FAS Goncalves… - 2009 IEEE Energy …, 2009 - ieeexplore.ieee.org
This paper presents the development and the experimental analysis of a new single-phase
hybrid rectifier structure with high power factor (PF) and low harmonic distortion of current …

Proposta de técnica de controle indireto da tensão nos terminais do arranjo fotovoltaico para seguimento do ponto de máxima potência utilizando reduzido número …

PAR Freitas - 2024 - repositorio.ufu.br
O presente trabalho busca o avanço no setor da energia solar fotovoltaica, uma vez que é
proposta uma nova estratégia de controle GMPPT (Global Maximum Power Point Tracking) …

A novel single-phase HPF hybrid rectifier suitable for front-end trolleybus systems

LCG Freitas, GB Lima, FAS Gonçalves… - 2009 Brazilian …, 2009 - ieeexplore.ieee.org
This paper proposal presents the development and the experimental analysis of a new
single-phase hybrid rectifier structure with high power factor (PF) and low harmonic …

Retificador Híbrido de Alta Potência com Reduzida DHTI Utilizando Conversor Boost para Promover Alta Suportabilidade a Afundamentos de Tensão

AV Costa, DB Rodrigues, GB Lima… - Eletrônica de …, 2012 - journal.sobraep.org.br
Os afundamentos temporários de tensão são as principais causas de paradas
intempestivas em sistemas automatizados que utilizam dispositivos de acionamentos de …