ASSESSMENT OF THE EFFECTS OF THE ELECTRIC ARC FURNACE ON VOLTAGE FLUCTUATIONS AND SEVERAL OF SOLUTIONS

Abstract

The power quality is getting more and more attention in our country. Voltage fluctuation is one of the importance parameters. Voltage fluctuation is a systematic variation in voltage or a series of random voltage changes more than one periode. Electric arc furnaces are the most common cause of voltage fluctuations on power distribution and transmission systems. The objective of this paper is to evaluate voltage fluctuations caused by electric arc furnaces in the electrical system before installation. The article forcuses on the three-phase electric arc furnace simulation method based on the combination of the classical Cassie method and the Mayr mathematical equation, use Matlab & Simulink software. Simulation results are the waveforms of voltage and current at the common point of the arc furnace with other loads, from there assess the voltage fluctuation caused by the electric arc furnace and give some solutions to limit this electric fluctuations.