A new frequency domain approach for flicker evaluation of arc furnaces

Author

Hernández, Araceli ; Mayordomo, Julio G. ; Asensi, Rafael ; Beites, Luis F.

Author_Institution

Dept. of Electr. Eng., Univ. Politecnica de Madrid, Spain

Volume

18

Issue

2

fYear

2003

fDate

4/1/2003 12:00:00 AM

Firstpage

631

Lastpage

638

Abstract

In this paper, flicker magnitudes of rapidly varying loads are evaluated by means of a new frequency domain method. Analytical expressions of the instantaneous flicker sensation are obtained in terms of interharmonic voltages. The dynamic response of flicker magnitudes of such loads can be clearly described with this analysis, as well as the individual contribution of each interharmonic to the flicker sensation. The proposed method, applied to the voltages of DC and AC arc furnaces, provides very satisfactory results that have been validated with measurements performed with the standardized IEC flickermeter.

Keywords

arc furnaces; frequency-domain analysis; harmonic analysis; harmonic distortion; load (electric); power supply quality; power system harmonics; arc furnace flicker evaluation; dynamic response; flicker magnitudes; frequency domain approach; instantaneous flicker sensation; interharmonic voltages; rapidly varying loads; standardized IEC flickermeter; Frequency domain analysis; Frequency estimation; Frequency modulation; Furnaces; Humans; IEC standards; Performance evaluation; Power quality; Proposals; Voltage fluctuations;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2003.809733

Filename

1193888