Research on decoupling method of thickness and tension control in rolling process

In the process of rolling, the thickness control and tension control tend to influence each other. In order to reduce mutual interference between the thickness control and tension control of rolled piece, and further improve the control precision of the rolled piece thickness and tension, in view of the coupling of the thickness control and tension control system, We design a decoupling compensator using invariance principle, to realize the decoupling of the thickness and tension control system. And through theoretical derivation and simulation, the effect of the designed decoupling compensator is verified, realizing the decoupling of the thickness and tension control system, and reducing the mutual interference with each other.