A computational and practical analysis of VSI-PWM frequency converter under balanced and unbalanced voltage sag

Author

Leäo, Paulo C A ; Oliveira, José C.

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Sao Joao del-Rei, Minas Gerais, Brazil

Volume

2

fYear

2002

fDate

6-9 Oct. 2002

Firstpage

730

Abstract

This paper aims at presenting results from investigations related to the performance of VSI-PWM frequency converter under both balanced and unbalanced voltage sag conditions. Not only computational analysis using a comprehensive model implemented into the SABER simulator but also practical studies are presented. The later uses a commercial type of converter and a programmable power quality disturbance source. Using both the theoretical and practical ways of considering the equipment performance under voltage sag conditions, several situations are investigated to assess the equipment behavior and its ride-through capability.

Keywords

PWM invertors; PWM power convertors; circuit simulation; frequency convertors; power supply quality; SABER simulator; VSI-PWM frequency converter; balanced voltage sag; commercial type converter; computational analysis; practical analysis; programmable power quality disturbance source; unbalanced voltage sag; Circuit faults; Computational modeling; Diodes; Frequency conversion; Power quality; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Variable speed drives; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power, 2002. 10th International Conference on

Print_ISBN

0-7803-7671-4

Type

conf

DOI

10.1109/ICHQP.2002.1221525

Filename

1221525