A digital controller for single-phase UPS inverters to reduce the output DC component

Author

Pinheiro, Humberto ; Botterón, Fernando ; Pinheiro, José R. ; Hey, Hélio L. ; Gründling, Hilton A.

Author_Institution

Power Electron. & Control Res. Group, Federal Univ. of Santa Maria, Brazil

Volume

2

fYear

2004

fDate

20-25 June 2004

Firstpage

1311

Abstract

This paper proposes a new two layers digital controller for PWM inverters, which significantly reduces the output DC voltage component. It is suitable for low cost PWM inverters where analog-to-digital converters and digital pulse width modulators with small numbers of bits are used. The controller description and design are presented. Experimental results on a 5 kVA set-up validate the theoretical analysis carried out.

Keywords

PWM invertors; analogue-digital conversion; control engineering computing; control system synthesis; digital control; power engineering computing; uninterruptible power supplies; 5 kVA; DC voltage component; PWM inverters; analog-to-digital converters; digital controller; digital pulse width modulators; single-phase UPS inverters; Circuit faults; Costs; Digital control; Low pass filters; Power electronics; Pulse inverters; Pulse width modulation converters; Pulse width modulation inverters; Uninterruptible power systems; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual

ISSN

0275-9306

Print_ISBN

0-7803-8399-0

Type

conf

DOI

10.1109/PESC.2004.1355612

Filename

1355612