摘要：Based on sliding mode control theory, in this paper a control method of tension control
system in printing machine is presented. Firstly, a sliding mode controller for decreasing
steady-state error is designed based on the servo motor model in the tension control system of
printing machine, and the simulation verification is carried out in the MATLAB/Simulink.
Further the hardware circuit is implemented through the design of operational amplifier to
reduce the chattering of the system, and the trapezoidal wave is served as the input signal to
reduce the overshoot of printing machine generated at the moment of start and stop, ensuring
the smooth start and stop of the system. With the simulation results and the experimental
results being consistent, it illustrates the correctness and practicality of the proposed method.
