Title :
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
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, PST, 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;
Conference_Titel :
Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-1993-1
DOI :
10.1109/IAS.1994.377742
