Digital self-control technique applied to a high frequency isolated pre-regulator with power factor correction

Author

Praça, P.P. ; Bezerra, L.D.S. ; Henn, G.A.L. ; Silva, R.N.A.L. ; Da Câmara, R.A. ; Barreto, L.H.S.C. ; Torrico-Bascopè, R.P. ; Oliveira, D.S., Jr.

Author_Institution

Dept. of Electr. Eng., Univ. Fed. do Ceara, Fortaleza, Brazil

fYear

2009

fDate

3-5 Nov. 2009

Firstpage

2854

Lastpage

2860

Abstract

This paper presents a high frequency isolated pre-regulator using the self-control technique, which aims to provide a 400 Vdc link with input power factor correction. The main feature of self-control technique, as the OCC one, is the direct loop feedback from the input current, using the converter parameters for the current loop control. The input voltage sample is not necessary, as in several others PFC theories. The technique was carried out using a DSPIC from MICROCHIP. A 2 kW prototype was assembled and its experimental waveforms will be presented on this paper.

Keywords

digital control; electric current control; feedback; frequency control; power factor correction; DSPIC; MICROCHIP; converter parameters; current loop control; digital self-control technique; direct loop feedback; high frequency isolated preregulator; power 2 kW; power factor correction; voltage 400 V; Choppers; Costs; Digital control; Frequency; Power factor correction; Process control; Prototypes; Switches; Uninterruptible power systems; Voltage control; Digital Control; Pre-Regulator; Self-control technique; UPS;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2009. IECON '09. 35th Annual Conference of IEEE

Conference_Location

Porto

ISSN

1553-572X

Print_ISBN

978-1-4244-4648-3

Electronic_ISBN

1553-572X

Type

conf

DOI

10.1109/IECON.2009.5415399

Filename

5415399