Authors: T. Ma, G.J. Bendzsak and M. Perkins
Proceedings of the International Symposium on Non Ferrous Pyrometallurgy - Trace Metals Furnace Practices and Energy Efficiency; Edmonton, Canada; August 1992
Abstract
High power electric smelting furnaces operate typically at power levels in the 30 to 60 MW range,
and frequently, the furnace dynamic load swings can have a significant impact on the generation
equipment, transient stability of the power system and the power quality to other interconnected
loads. Power systems for these furnaces are designed with the objectives of increasing the average -
furnace power levels while meeting utility load restrictions, disturbance limits and equipment
performance limitations. System design considerations include generation frequency swings, bus voltage fluctuations, harmonic filtering, furnace and power system controls. A systematic design approach consists of estimation of furnace load fluctuations, dynamic numerical simulations of furnace and power
system equipment , followed by simulation and analysis of process controls.
