Design decoupling control strategy of four-layer register system for printed electronic equipments

Register accuracy is an important index to evaluate the quality of printed electronic products. However, the complex relationships in multi-layer register system make the problem of decoupling control difficult to be solved. Hence, according to active disturbance rejection control (ADRC), a decoupling control strategy is proposed to improve precision and stability of the four-layer register system in this study. First, a nonlinear and coupling model is established, and then, we derive a decoupling model to determine the static decoupling model of the four-layer register system. Secondly, a decoupling controller based on ADRC is designed according to the register system order and decoupling model. Finally, the simulation results show that the proposed decoupling control strategy is able to realize a high precision control for the multi-layer register system in gravure printed electronic equipments.