Active disturbance rejection and decoupling control of gravure press register system
CHEN Yi-jun
CHEN Zhi-hua
DENG Zhong-hua
Abstract：In the running process of non-shaft gravure press, there exist various forms of disturbances;the register error of each unit couples with that of other units through tension propagates which seriously affects the system registration accuracy. Therefore, decoupling and disturbance rejection control is required. The approximate mathematical model for printing press is established, and a new decoupling and disturbance rejection control strategy which combines extended state observer with feedforward is proposed. It turns the complicated nonlinear system with strong coupling, large disturbance and model uncertainty into an approximate second-order linear system through dynamic compensation, thus, reducing the control difficulty of the system and improving the system dynamic performance and active disturbance rejection ability. Simulation results show that compared with traditional feedforward control and nonlinear control, the proposed method brings higher convergence speed for the control error and improves the dynamic response performance, decouples between units and provides good disturbance rejection performance.
Keywords：gravure printing pressmodellingfeedforwardextended state observeractive disturbance rejection control
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 814-820 )