The Simulation and Optimization of the Electro-Hydraulic Proportional Control System Based on Simulink/SRO

Abstract

Nowadays, the electro-hydraulic valves are widely used in industrial manufacture for their low-cost and accuracy. Aiming at electro-hydraulic proportional position system, a model of the system is established in Simulink. The system is simulated respectively as the situation of without PID controller, with the PID controller turned by critical ratio method and SRO optimize module. The results show that: the position control system with electro-hydraulic proportional valve is of good static and dynamic characteristics, and meets the requirements of industrial production fairly, and it also indicates the usage of computer automation optimization technology can design the control system with good performance in a short time and can improve the design efficiency.

Keywords

• Proportional directional valve
• Position control system
• SRO module
• Optimization