冷轧机液压辊缝系统的优化控制研究

Research on Optimal Control of Hydraulic Gap System of Cold Rolling Mill

为提高板带材厚度精度,改善冷轧机电液伺服系统性能,将模糊自适应滑模控制技术应用于系统控制器设计中,选用合适的Lyapunov函数,三步算法就可实现对五阶系统的控制器设计,并在设计的最后一步同滑模控制技术结合;仿真结果说明,该控制器能够准确迅速跟踪指定位置,对于外界干扰、系统参数变化有很强的鲁棒性,且该控制器设计易于实现,可为工业应用提供有力支撑。

In order to improve the accuracy of strip thickness and the performance of electro-hydraulic servo system for cold rolling,the fuzzy adaptive sliding mode control technology is applied to the design of system controller.By selecting appropriate Lyapunov function,the three-step algorithm can realize the controller design of the five-order system,and the last step of the design is combined with the sliding mode control technology.The simulation results show that the controller can accurately and rapidly track the specified position,has strong robustness against external interference and system parameter changes,and the design of the controller is easy to implement,which can provide strong support for industrial applications.