Research on High-Precision Position Control of Valve-Controlled Cylinders Based on Variable Structure Control

During the operation of valve-controlled cylinder position systems, there are some problems, such as uncertainty and time-varying system parameters, imprecise modeling, external interference. These problems will affect loading accuracy safety reliability electro-hydraulic servo system. This paper used a research object, mathematical model was established. Then, sliding mode variable structure controller dynamic soft were designed, Grey Wolf algorithm to adjust parameters. The control effect two controllers in verified with simulation experiment. results showed that compared controller, had higher precision better stability avoided chattering phenomenon.