Estimation of stochastic characteristics of an AC electric arc furnace

Author

Huang, Shyh-Jier ; Lu, Chen-Wen

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

3

fYear

2002

fDate

6-10 Oct. 2002

Firstpage

2073

Abstract

Electric Arc Furnace (EAF) is productive equipment used to melt scrap, but also injects harmonics into the utility. In this paper, the stochastic characteristics of an EAF over three complete heats were estimated at a basic sampling period. Characteristics including stationarity, normality and correlation are investigated. Besides, several statistic parameters such as mean value, standard deviation and accumulative probability were all assessed by varying sampling period. This estimation work was implemented by a microcomputer-based instrumentation system. Test results of a typical AC EAF were and discussed. They can be useful reference for the improvement of electric power quality.

Keywords

arc furnaces; harmonic distortion; power supply quality; power system harmonics; stochastic processes; AC electric arc furnace; accumulative probability; harmonics injection; mean value; power quality improvement; sampling period; scrap melting; standard deviation; stochastic characteristics estimation; Furnaces; Harmonic distortion; Performance evaluation; Power system harmonics; Sampling methods; Steel; Stochastic processes; Testing; Total harmonic distortion; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exhibition 2002: Asia Pacific. IEEE/PES

Print_ISBN

0-7803-7525-4

Type

conf

DOI

10.1109/TDC.2002.1177780

Filename

1177780