Sliding mode control of a unity power factor 3-phase AC/DC boost converter

Author

Baev, S. ; Shtessel, Y. ; Sheffield, M.

Author_Institution

Univ. of Alabama in Huntsville, Huntsville

fYear

2008

fDate

3-6 April 2008

Firstpage

491

Lastpage

496

Abstract

A problem of power factor correction for a class of 3- phase boost AC/DC power converters is addressed in the paper. A full-bridge hardware topology is studied and used to address the basics of the efficient power conversion with high values of power factor. The sliding mode control drives the output voltage to the desired DC level in the presence of external disturbances and internal parameter uncertainties, while providing close to unity (greater than 97%) value of power factor. Sliding mode observers are employed to estimate variation in load and phase resistances - subject of realtime adjustment in the control law. Multi-rate numerical simulation illustrates the efficiency of the proposed methodology and proves its ability to be implemented in digital form.

Keywords

AC-DC power convertors; numerical analysis; power factor; power factor correction; variable structure systems; numerical simulation; phase AC/DC boost converter; power conversion; sliding mode control; unity power factor; Analog-digital conversion; Drives; Hardware; Phase estimation; Power conversion; Power factor correction; Reactive power; Sliding mode control; Topology; Uncertain systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon, 2008. IEEE

Conference_Location

Huntsville, AL

Print_ISBN

978-1-4244-1883-1

Electronic_ISBN

978-1-4244-1884-8

Type

conf

DOI

10.1109/SECON.2008.4494344

Filename

4494344