Paper Info
Title
Proposal for preprogrammed control applied to a current-sensorless PFC boost converter
Abstract
The development of front-end converters for power factor correction and DC link voltage control of power electronics converters such as, UPS, Inverters, and Switched Power Supplies, has been attracting great interest from the scientific community that works toward the achievements of cost reduction, high efficiency, and reliability. In this context, this paper proposes a microprocessed control technique for sinusoidal input line current imposition in front-end ac-dc converters. This gave rise to an innovative sensorless boost converter, named in this work as PFC-Boost-CSL. The proposed method is based on experimental acquisition of gate-drive signal sequences for different load conditions. These signals correspond to a complete cycle of the AC input voltage and are recorded in the microcontroller memory in order to be reproduced when used in a boost converter without current sensor. In the operation of PFC-Boost-CSL, a suitable switching sequence is sent to drive the power switch in order to minimize output voltage error and maintain a sinusoidal input current. Aiming to prove the proposed control concept, a 600W PFC-Boost-CSL prototype was built and analyzed in laboratory and the main experimental results are presented herein.
Year
DOI
Venue
2014
10.1016/j.micpro.2014.03.002
Microprocessors & Microsystems
Keywords
Field
DocType
boost converter,current-sensorless,digital control,power factor correction
Boost converter,Computer science,Power factor,Ćuk converter,Converters,Real-time computing,Microcontroller,Current sensor,Electrical engineering,Digital control,Switched-mode power supply
Journal
Volume
Issue
ISSN
38
5
0141-9331
Citations 
PageRank 
References 
1
0.41
2
Authors
6
Name
Order
Citations
PageRank
Antônio De Pádua Finazzi110.41
Gustavo Brito Lima210.75
Luiz Carlos De Freitas320.82
Luiz Carlos De Freitas420.82
Ernane AntÔnio Alves Coelho5304.46
Valdeir José Farias610.41