Comparison of dynamic resistance arc furnace models for flicker study

Author

Islam, Md Minarul ; Chowdhury, A. Hasib

Author_Institution

Dept. of Electr. & Electron. Eng., BUET, Dhaka, Bangladesh

fYear

2012

fDate

20-22 Dec. 2012

Firstpage

193

Lastpage

196

Abstract

Owing to the nonlinear characteristics, electric arc furnace (EAF) loads can result in serious electrical disturbances such as harmonics and voltage flicker in power system. Amplitude modulation of the supply voltage in the frequency range of 6-10 Hz created by EAF can cause annoying fluctuations of the electric lighting flux. This paper presents comparative study of different EAF models. The static resistance in each piece-wise linear section of the V-I curve of each model is modulated to obtain the dynamic resistance EAF model. Voltage flickers at PCC caused by different dynamic resistance models are measured using MATLAB simulation of the EAF systems and the results are compared with existing fliker limits to see the level of flicker caused by different models and modulation indices.

Keywords

amplitude modulation; arc furnaces; EAF loads; MATLAB simulation; amplitude modulation; dynamic resistance EAF model; dynamic resistance arc furnace models; electric arc furnace; electrical disturbances; flicker study; fliker limits; frequency 6 Hz to 10 Hz; modulation indices; nonlinear characteristics; piece-wise linear section; static resistance; Electric arc furnace; nonlinear resistance; power quality; voltage flicker;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical & Computer Engineering (ICECE), 2012 7th International Conference on

Conference_Location

Dhaka

Print_ISBN

978-1-4673-1434-3

Type

conf

DOI

10.1109/ICECE.2012.6471518

Filename

6471518