Research On The Electrode Rotation Control Of 120 Ton Double Station Refining Furnace

The iron and steel industry is an important pillar industry of the national economy and an important symbol of the country's economic level and overall national strength.With the rapid development of the national economy,new requirements have been placed on the iron and steel industry.In the steelmaking process of the refining furnace,due to the complicated furnace conditions,the electrodes of the refining furnace have non-linear factors such as time-variability and uncertainty in the operation process,and the use of conventional PID control has certain limitations.In order to better ensure the control performance,a theoretically mature intelligent control technology can be adopted,which can autonomously adjust the relevant control parameters according to the environmental changes of the system,so as to achieve good control of the complex nonlinear system.This thesis is based on a 120-ton double-station refining furnace in a steel plant as the research object,and mainly solves the problem of shaking and crawling of the electrode rotary cylinder of the double-station refining furnace.Firstly,the structure and function of the two-car two-station refining furnace and its control system are introduced.The reason for the shaking of the rotary cylinder is analyzed,the mathematical model of the rotary system is established,and the transfer function of the system is obtained.Aiming at the shortcomings and shortcomings of traditional PID control in dealing with nonlinear systems,a PID control method based on a radial basis function identification network is proposed.S-functions are written using MATLAB,a neural network controller is built,and it is combined with traditional PID control systems.Simulation comparison.The simulation results show that the control scheme has stronger anti-interference ability and parameter adaptation ability,smaller steadystate error,and higher control accuracy.In view of the comprehensiveness and completeness of the hydraulic system model in AMESim,the mathematical model of the valve-controlled hydraulic cylinder system was built using AMESim,and the new system model was co-simulated with MATLAB.The simulation results showed that compared with traditional PID control,Under the new control strategy,the pressure and flow fluctuations are smaller,the response speed is faster,the control accuracy is higher,and the steady-state error is also smaller.This control scheme is in line with the system design requirements and has certain reference to future engineering practices and Guiding significance.