| Title |
A Study on the Time-varying Harmonics Measurement, Assessment and Simulation of the Electric Arc Furnace Loads |
| Authors |
Kyung-Chul Kim ; Seong-Eun Jin ; Ju-Hong Lee ; Young-Soo Jeon |
| Keywords |
Electric arc furnace ; Harmonics measurement ; Harmonics assessment ; Harmonic simulation ; IEC 61000-3-6 ; IEEE Std. 519 |
| Abstract |
Large steel industries have nonlinear loads such as electric arc furnaces. Harmonic field measurements have shown that the harmonic contents of a waveform varies with time. Direct application of the harmonic assessment to the snapshot measurements would result in ambiguous conclusions depending on which instant is sampled. A cumulative probablistic approach is the most commonly used method to solve time-varying harmonics. Harmonic simulations are performed to evaluate the harmonic voltage and current distortions throughout the system. This paper provides an in depth analysis on harmonics field measurement of the electric arc furnace loads, harmonics assessment by the international harmonic standards IEC 61000-3-6 and IEEE Std. 519 and harmonic simulation for the time-varying harmonics. The EDSA program was used as a simulation tool for the case study. |