| Aimed at the characters of large-power EAF's smelt procedure, the paper presents intelligence integrated control system , introduces control theory and technology and adopts three steps control mode: proceeding stage, control stage, driver stage. The control system is made of double closed loops: the inner current loop and the outer temperature loop, and satisfies the EAF's temperature need and three phase current balance . Temperature loop adopts intelligence control technology ,such as fuzzy control, neural network, expert control; and current loop introduces expert coupling control and fuzzy control of three phase current .This system assures three phase current balance and temperature stabilization.The system ,which is made up of high-quality periphery modules, focuses on industry control computer ,takes ami-disturb measures of hardware and software ,and assures the system's stability and security. The system web-based realizes long-distance control and management. |
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