Electric arc current control for an electric arc furnace based on fuzzy logic

Author

Ghiormez, Loredana ; Prostean, Octavian

Author_Institution

Fac. of Autom. & Comput., Politeh. Univ. of Timisoara, Timisoara, Romania

fYear

2015

Firstpage

359

Lastpage

364

Abstract

This paper presents a current control for a three-phase electric arc furnace. In order to do this, a model of the electric arc was used. Using this model, the waveforms for the arc current, arc voltage and voltage-current characteristic of the electric arc were illustrated for different arc lengths. Also, an arc current control algorithm was proposed. This algorithm is used for the designing and implementation of a fuzzy controller which has the current deviation as input and electrode speed as output. The response of the closed-loop system is presented for a setpoint arc current.

Keywords

arc furnaces; arcs (electric); closed loop systems; electric current control; fuzzy logic; metallurgical industries; process heating; arc voltage; closed-loop system; electric arc current control; electrode speed; fuzzy controller; fuzzy logic; setpoint arc current; three phase electric arc furnace; voltage current characteristic; Current control; Current measurement; Electrodes; Furnaces; Fuzzy logic; Impedance; Mathematical model;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Computational Intelligence and Informatics (SACI), 2015 IEEE 10th Jubilee International Symposium on

Conference_Location

Timisoara

Type

conf

DOI

10.1109/SACI.2015.7208229

Filename

7208229