DESIGN AND IMPLEMENTATION OF DISTRIBUTED－CONCENTRATED CONTROL SYSTEMS FOR ELECTRIC FURNACE SMELTING PROCESS

The paper put forward three-phase current control strategy for the electric furnace smelting process.Three－phase electrodes controllers were designed with the aid of EUROTHERM DCS equipments,which has been successfully applied in a certain ferroalloy factory.Thus the electric furnace production au-tomation and on－line management were accomplished.Therefore.the ferroalloy production level came up to advanced world standards.