Analysis of harmonic for 12-pulse converter under unbalanced voltage operation due to lightning related voltage sags and short interruption

Author

Boonseng, C. ; Kinnares, V.

Author_Institution

Dept. of Electr. Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand

Volume

3

fYear

2001

fDate

2001

Firstpage

1009

Abstract

This paper presents a summary of power quality related concerns associated with the applications of 12-pulse converter with DC motor drives in industrial plants. These concerns include power system harmonics and harmonic distortion under unbalance voltage condition during voltage sags occurrence. The definition proposed focuses on system faults due to lightning. The voltage unbalance causes large unbalance source currents resulting in excessive input current and high distortion. The percentage of total harmonic distortion of input current (THD_i) increased approximately 47% at 6 per unit of normal peak current. The measurement and analysis of such events has been performed. Finally, the new phase-angle jump concept based on measured techniques is introduced

Keywords

DC motor drives; harmonic distortion; lightning; power convertors; power supply quality; power system harmonics; 12-pulse converter; DC motor drives; dynamic distortion analysis; harmonic analysis; harmonic distortion; harmonic filter; high distortion; industrial plants; input current; lightning related voltage sags; phase-angle jump; power quality; power system harmonics; short interruption; system faults; total harmonic distortion; unbalance source currents; unbalance voltage condition; unbalanced voltage operation; voltage sags; voltage unbalance; DC motors; Distortion measurement; Harmonic analysis; Harmonic distortion; Industrial plants; Lightning; Power quality; Power system harmonics; Total harmonic distortion; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Winter Meeting, 2001. IEEE

Conference_Location

Columbus, OH

Print_ISBN

0-7803-6672-7

Type

conf

DOI

10.1109/PESW.2001.917206

Filename

917206