| Abstract:The unwinding side accumulator in roll-to-roll coating equipment is an important component for achieving large-scale continuous paper production. Precisely controlling the tension of the paper within the accumulator is crucial for ensuring the quality of paper coating manufacturing. This paper addresses the tension control issue of the paper within the unwinding side accumulator of roll-to-roll coating equipment. Firstly, a tension coupling model for the paper within the accumulator, as well as dynamic models for input-output rollers and carriage, and a thrust model for the ball screw, are established. Subsequently, by integrating genetic algorithms (GA) and the LADRC controller, an improved LADRC controller is designed to achieve parameters self-tuning of the LADRC controller and to address issues such as insufficient control precision and poor robustness of traditional PID controllers. Finally, simulation experiments are conducted based on the established models and designed controllers. The experiments focus on the parameters tuning performance of the improved LADRC controller and the tension control performance of the paper within the accumulator. The experimental results demonstrate that the designed improved LADRC controller can achieve parameters self-tuning and has better tension control performance compared to traditional PID controllers, meeting the tension control requirements for paper coating manufacturing within the unwinding side accumulator. |