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Modeling and Tension Control Based on an Improved LADRC for the Unwind Side Accumulator in Roll-to-roll Equipment
Received:April 08, 2024  
DOI：10.11980/j.issn.0254-508X.2024.09.021
Key Words:paper coating  roll-to-roll  accumulator  improved LADRC  tension control
Fund Project:国家新闻出版署智能与绿色柔版印刷重点实验室招标课题（ZBKT202303）；西安理工大学研究生科研资助基金（252062301）。
Author NameAffiliationPostcode
JU Guoli Xi’an University of Technology， Xi’an， Shaanxi Province， 710054 710054
LIU Shanhui* Xi’an University of Technology， Xi’an， Shaanxi Province， 710054 710054
FENG Lei Shaanxi Beiren Printing Machinery Co.， Ltd.， Weinan， Shaanxi Province， 714000 714000
LI Yinfeng Shaanxi Beiren Printing Machinery Co.， Ltd.， Weinan， Shaanxi Province， 714000 714000
ZHAO Wenhui Xi’an University of Technology， Xi’an， Shaanxi Province， 710054 710054
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Abstract:The tension control issue of the paper within the unwinding side accumulator of roll-to-roll coating equipment was addressed in this paper. Firstly， a tension coupling mode for the paper within the accumulator， as well as dynamic modes for input-output rollers and carriage， and a thrust mode for the ball screw were established. Subsequently， by integrating genetic algorithms （GA） and the Linear Active Disturbance Rejection Control （LADRC） controller， an improved LADRC controller was designed to achieve parameters self-tuning of the LADRC controller and to address issues such as insufficient control precision and poor robustness of traditional proportional-integral-derivative（PID） controllers. Finally， simulation experiments were conducted based on the established modes and designed controllers. The experiments focused on the parameters tuning performance of the improved LADRC controller and the tension control performance of the paper within the accumulator. The results demonstrated that the designed improved LADRC controller could achieve parameters self-tuning and hare better tension control performance compared to traditional PID controllers， meeting the tension control requirements for paper coating manufacturing within the unwinding side accumulator.
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