Flicker and distortion compensation in electrical plants supplying arc-furnaces

Author

Montanari, G.C. ; Loggini, M. ; Cavallini, A. ; Pitti, L.

Author_Institution

Istituto di Elettrotecnica Ind., Bologna Univ., Italy

fYear

1994

fDate

2-6 Oct 1994

Firstpage

2249

Abstract

A method for compensation of flicker and harmonic distortion in electrical plants supplying arc-furnaces, which consists of the insertion of series inductors and AC harmonic filters, is investigated. For this purpose, a three-phase model of an arc furnace, implemented by EMTP, is provided, where arc-length time variation obeys either sinusoidal or white-noise law. The model is applied to simulated cases and experimental results, showing that both short-term flicker severity, P_ST, and total harmonic distortion, THD, decrease with the insertion a compensation system constituted of series inductor and harmonic filters. The proposed three-phase model proves to fit well the experimental data, thus constituting a useful tool for arc-furnace behavior inference

Keywords

arc furnaces; compensation; filters; harmonic distortion; inductors; industrial power systems; interference suppression; power supplies to apparatus; power system harmonics; power transformers; white noise; AC harmonic filters; EMTP; arc-furnaces supplies; arc-length time variation; distortion compensation; electrical plants; flicker compensation; series inductors; short-term flicker severity; sinusoidal noise law; three-phase model; total harmonic distortion; white-noise law; EMTP; Electricity supply industry; Furnaces; Harmonic distortion; Harmonic filters; Humans; Inductors; Power harmonic filters; Power transformer insulation; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-1993-1

Type

conf

DOI

10.1109/IAS.1994.377742

Filename

377742