| 摘要 |
A method and a device for optimization of flatness control in the rolling of a strip using any number of mill stands and actuators. A mill model is used represented by a mill matrix that includes information of the flatness effect of each actuator. Each actuator's flatness effect is translated into a coordinate system having a dimension less than or equal to the number of actuators used. The actual flatness values are monitoring/sampling across the strip. A vector of the flatness error/deviation is computed as the difference between the monitored/sampled strip flatness and a reference flatness vector. The flatness error is converted into a smaller parameterized flatness error vector. A dynamic controller is used to calculate optimized actuator set-points in order to minimize the parameterized flatness error, thereby achieving the desired strip flatness. Also a system for optimization of flatness control in rolling a strip. |
