为了精确研究滚筒印刷的张力特性及控制策略，建立了一个较精确的开卷张力动力学模型，利用MATLAB强大的建模、仿真功能，开发了一个开卷张力仿真模型，采用 PID对其进行控制，由此构建了完整的卷筒纸印刷机开卷张力控制仿真系统。对多个张力扰动因素进行了研究与仿真，并给出了不同扰动占主导时的张力控制系统仿真结果。

In order to characterize tension and establish control strategy, a precise dynamical model of unwinding was established. The model was developed by using MATLAB. A complete unwinding tension simulation model of web press was developed using PID as control algorithm. Multi perturbation factors of unwinding tension were simulated and studied. Simulated results were given according to different major perturbation factor of unwinding tension.