Bogie Furnace The heat treatment process usually presents the characteristics of large lag, nonlinearity and time-variation, and Large Bogie Furnace due to the large heating space, the temperature field has strong coupling and strong on-site interference, which brings great uncertainty to Temperature Control and seriously affects product quality. Therefore, improving and solving Bogie Furnace Temperature Control System to meet the requirements of heat treatment process has important practical significance.
This paper introduces the current situation, development trend and existing problems of Bogie Furnace Temperature Control in my country, and focuses on analyzing the problems faced by Temperature Control in the Large Bogie Furnace heat treatment process. Secondly, in view of the characteristics of the resistance furnace temperature system with multi-input multi-output, large time delay and strong coupling, a method combining predictive control and fuzzy control is adopted, that is, on the basis of generalized predictive control with simplified control domain length (single-valued generalized predictive control algorithm), a high-level fuzzy control unit is used as an auxiliary unit for closed-loop optimization compensation. Simulation results show that the algorithm has good tracking performance for multi-input multi-output, pure lag and strong coupling systems, and has also achieved satisfactory control effects in actual operation.
According toBogie Furnace Requirements for temperature heat treatment processes, this system has completed the development of Field Bus technology-based Bogie Furnace Temperature Control System that integrates functions such as detection, control and management. The entire system adopts a two-level computer control method, the basic Automation level uses Siemens PLC, to realize the control of the operation of Bogie and the sand sealing, Furnace Door Liter drop and sealing. The monitoring level is an industrial control computer produced by Advantech of Taiwan, which completes the functions of system configuration, monitoring, alarm, tabulation and other functions. The system software Easy Operation , the画面 is dynamic and intuitive, the control effect is good, and has the characteristics of high adaptability, High Reliability and High Stability .
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