Loading...

Three dimensional analysis of an AC electric arc furnace

Kiyoumarsi, A ; Sharif University of Technology

1154 Viewed
  1. Type of Document: Article
  2. DOI: 10.1109/IECON.2009.5415134
  3. Abstract:
  4. AC electric arc furnaces (EAFs) highly reduce power quality of the network by generating disturbances such as flicker and harmonics. These disturbances are due to the nonlinear electromagnetic and thermal field behaviors of the AC arcs. Analysis of these nonlinear behaviors is required for improving power quality in the network. This paper presents a three-dimensional finite element modeling of the electromagnetic fields in an AC three-phase electric arc furnace. The model includes the electrodes, arcs and molten bath. Current density, voltage and magnetic field intensity in the arcs, molten bath and electrodes are predicted as a result of applying the three-phase AC voltages to the EAF. This model does not consider the instantaneous geometry of the arc, instead a constant geometry, which is adjacent to the geometry of a DC arc with a DC current equal to the RMS value of the current waveform, is considered. Electromagnetic field of the AC arc in the time-domain is also modeled using the three-dimensional finite element method. ©2009 IEEE
  5. Keywords:
  6. Current waveforms ; DC current ; Electric arc furnace ; Improving power ; Magnetic-field intensity ; Molten baths ; Nonlinear behavior ; Phase-electric ; Thermal field behavior ; Three dimensional finite elements ; Three-dimensional analysis ; Three-dimensional finite element method ; Three-phase AC voltage ; Time domain ; Cavity resonators ; Computational geometry ; Electric arcs ; Electric furnace process ; Electric furnaces ; Electrodes ; Electromagnetic field measurement ; Electromagnetic fields ; Finite element method ; Furnaces ; Industrial electronics ; Magnetic fields ; Particulate emissions ; Power quality ; Steel metallurgy ; Time domain analysis ; Three dimensional
  7. Source: IECON Proceedings (Industrial Electronics Conference), 3 November 2009 through 5 November 2009 ; 2009 , Pages 3697-3702
  8. URL: http://ieeexplore.ieee.org/document/5415134