Coiling Tension Control System of PID Simulation

Coiling tension control system is the main control means to ensure the quality of the rolling process. According to the characteristics of coiling tension control characteristics and the requirements of actual engineering, establish the mathematical model of the double closed loop control system and use the traditional PID to tuning the model parameters. It is proved by Matlab simulation experiments that traditional PID can effectively improve the response process of coiling tension control system and greatly enhance the dynamic and steady-state performance.

Simulation of Two AC Motor Coiling Tension Control System

When general PID controller appllied into multi-variable decoupling control system, its parameters are difficult to set and self-adaptability is poor. A neural network decoupling controller composed of self-adaptive PID controller and compensated decoupling network is presented, which is based on the analysis of the system model. Simulation results show that the controller designed basically eliminates the coupling effect of the tension control system and improves the dynamic and static performances.

Control Strategy of Coiling Tension Based on RBF-NN Inverse System

Based on the study of coiler tension indirect control process, the purpose is to improve the control accuracy of the constant tension by the introduction of RBF neural networks and inverse system control theory. Depending on the physical characteristic of coiling tension control process, it could build the inverse system model for coiling tension control. By analyzing simulation results, this control strategy has great significance to the actual production.

Development for the Optimization Technique of the Coiling Tension in Degreasing Unit

As to the production of degreasing unit, fully integrated with the equipment and technological features of the line, the approach for the setting of coiling tension was changed, which was mainly tabular method in the past. Under the new idea, the degreasing process was closely integrated with the bell-type annealing for the first time. Then, to minimize the severity of stick breaks was set as the objective function, and no loose coil and no heart-shaped coil is took as the constraint condition. On these bases, a new comprehensive optimization model for the setting of coiling tension in degreasing unit was put forward. The relation between coiling tension and coil radius was obtained, which was a quadratic curve. This simple and practical technology can make the distribution of internal stress of coil more reasonable, and reduce the incidence of stick breaks, loose coil and heart-shaped coil defects effectively and improve production efficiency, quality and the metal yield.