Probabilistic representation of harmonic currents produced by AC/DC static power converters

Author

Hegazy, Y.G. ; Salama, M.M.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

2

fYear

1995

fDate

8-12 Oct 1995

Firstpage

1689

Abstract

This paper presents a method for analyzing the behaviour of the sum of randomly varying harmonic currents produced by static power converters. The method is applied in a typical stochastic harmonic problem where several converters are supplied by the same feeder and both the firing angles of the converters and the switching mode of each converter are allowed to vary randomly. To achieve a more realistic picture of the underlying problem, a deterministic approach is implemented first to analyze the system under different extreme conditions and to set the upper and lower limits of the level of each harmonic current component. Then, the overall probabilistic model of the power system is solved within the preset boundaries. Finally, the obtained results are presented and discussed

Keywords

AC-DC power convertors; distribution networks; harmonic distortion; power system harmonics; probability; stochastic processes; thyristor convertors; AC/DC static power converters; deterministic approach; feeder; firing angles; harmonic currents; power system; probabilistic representation; stochastic harmonic problem; switching mode; thyristors; Harmonic analysis; Impedance; Power electronics; Power engineering and energy; Power engineering computing; Power system harmonics; Power system modeling; Static power converters; Switches; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE

Conference_Location

Orlando, FL

ISSN

0197-2618

Print_ISBN

0-7803-3008-0

Type

conf

DOI

10.1109/IAS.1995.530508

Filename

530508