AN INTEGRATED INTELLIGENT CONTROL RESEARCH APPLICATION OF HIGH-POWER ELECTRIC ARC FURNACE SYSTEM

Focusing on the control of high-power electric arc furnace in metallurgical industry,an integrated intelligent control scheme based on fuzzy control .neural network control and multi-objective optimization decision is put forward. First, variable structure fuzzy neural network control is adopted to design the outside controller of temperature, so it could provide the current instruction signal for the inside controller of three-phase electrode. Then in the design of inside controller,all the objectives are collected,some objective functions for optimization are constructed, and the multi-objective fuzzy optimization decision is used to realize the balance of the whole system. Now, an instrument using this kind of control scheme has been in operation successfully in Shaoguan smelt factory Guangdong.