滑模变结构在收卷张力控制系统中的应用与仿真

为精确研究卷筒纸印刷机的收卷张力特性及控制策略,通过对无轴传动多机组印刷机实验平台收卷运动的分析,建立了一个较精确的收卷张力动力学模型。利用MATLAB构造了一个以交流永磁同步电机为执行机构的张力控制仿真系统,根据其非线性,设计了滑模变结构控制器,并与传统的PID控制进行了实验比较,结果表明滑模控制改进了张力控制系统的动静态特性。仿真模型综合考虑了多个张力扰动因素,更加接近实际印刷机系统,为将先进的控制理论引入印刷机收卷张力系统,搭建了一个更精确、便捷的仿真平台。

Application and Simulation of Sliding Mode Control in Winding Tension Control System

A precise dynamical model of winding tension was established by analyzing the shaftless multiple unit web press experimental platforms to characterize winding tension and establish control strategy. A tension control simulation system was constructed whose actuator was a permanent magnet synchronous motor by using MATLAB. For its nonlinear performance, a sliding mode variable structure controller was designed, and compared with the traditional PID control through experiment. The results showed that the sliding mode control strategy improves the dynamic and static characteristics of tension control system. Multi perturbation factors of winding tension were considered in the simulation model, which made the simulation model more close to the real web press system. A more precise and convenient simulation platform was constructed by bringing the advanced control strategy to winding tension of web press.