摘要
根据PET涂覆机生产过程中薄膜收卷系统的非线性与大时变特点,分析了张力锥度与收卷速度、卷径及转矩变量之间的动力学关系,设计了薄膜连续收卷的锥度张力控制系统。基于速度差的间接张力模型实现张力控制,采用模型参考自适应PI控制策略控制收卷电机转速并对张力实时补偿。仿真与实验结果表明,提出的控制策略对PET涂覆机复卷张力系统的动态响应和稳态张力精度比原系统明显改善,解决了薄膜收卷系统张力控制难题。
According to the nonlinearity and time-varying characteristics of the winding system of PET coating machine production processes,the dynamic relation among taper tension and winding speed,radius,torque variables are analyzed,and a taper tension for the continuous winding control system of the PET film is designed. The tension is indirectly controlled by adjusting the speed difference between the compound motor and winding motor. The winding motor speed is controlled by MRAC PI strategy and the tension can be real-time compensated. The simulation and experimental results show that both the dynamic response and stable tension precision for the designed system are improved compared with the traditional system and the winding tension control for PET film is presented.
出处
《江南大学学报（自然科学版）》
CAS
2015年第2期151-155,共5页
Joural of Jiangnan University (Natural Science Edition)
基金
国家自然科学基金项目(51405198)
江苏省自然科学基金项目(BK2013159)
