Analytical prediction of harmonics produced by a twelve-pulse converter under unbalanced supply voltage

Author

Ngandui, ?‰loi ; Mohammed, El.J. ; Olivier, Guy ; Sicard, Pierre

Author_Institution

Dept. of Electr. & Comput. Eng., Quebec Univ., Trois-Rivieres, Que., Canada

Volume

1

fYear

2000

fDate

6/22/1905 12:00:00 AM

Firstpage

365

Abstract

AC/DC converters generate harmonic currents in power systems. A detailed analysis of harmonic currents produced by AC/DC power converters under nonideal operating conditions can be quite time consuming. In this paper, a simple analytical method is proposed for calculating harmonic currents produced by a twelve-pulse AC/DC thyristor converter under unbalanced supply voltage. Simplified models of magnitudes and phase angles of harmonic currents are derived as function of complex voltage unbalanced factor assuming equidistant phase angle control. Simulation results are presented to confirm the validity of the analytical method

Keywords

AC-DC power convertors; harmonic analysis; harmonic distortion; power conversion harmonics; rectifying circuits; thyristor convertors; AC/DC power converters; complex voltage unbalanced factor; equidistant phase angle control; harmonic current magnitude; harmonic current phase angle; harmonic currents generation; harmonics production analysis; nonideal operating conditions; simulation; thyristor converter; twelve-pulse power converter; unbalanced supply voltage; AC generators; Analog-digital conversion; DC generators; DC-DC power converters; Harmonic analysis; Power generation; Power system analysis computing; Power system harmonics; Thyristors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on

Print_ISBN

0-7803-6499-6

Type

conf

DOI

10.1109/ICHQP.2000.897055

Filename

897055