1. Introduction
The hydraulic system is an indispensable part of various fields such as industrial automation, machinery processing, automotive manufacturing, aerospace, etc. In the hydraulic system, the hydraulic valve as the core component directly affects the efficiency and stability of the entire system. The hydraulic valves used in the hydraulic system are numerous, among which the servo proportional hydraulic valve is widely used in various hydraulic systems with high control accuracy requirements due to its high precision, high response speed, and good linearity. Therefore, the optimization design of the servo proportional hydraulic valve control system is of great significance for improving the overall performance of the system.
2. Design of the Servo Proportional Hydraulic Valve Control System
System composition
The servo proportional hydraulic valve control system is mainly composed of servo proportional valves, hydraulic pumps, pressure sensors, flowmeters, electro-hydraulic servo controllers, and computer control systems. Among them, the servo proportional valve is the core component of the control system, responsible for adjusting the pressure and flow of the hydraulic system according to the control signals issued by the computer control system. The hydraulic pump provides the hydraulic oil required by the system, and the pressure sensor and flowmeter are used for real-time monitoring of the system's pressure and flow. The electro-hydraulic servo controller performs precise control of the servo proportional valve according to the control instructions issued by the computer control system and the data collected by the sensors.
Control strategy
In the servo proportional hydraulic valve control system, commonly used control strategies include feedforward control, feedback control, and feedforward-feedback hybrid control. Among them, feedforward control predicts the future state of the system and adjusts the control signal in advance to reduce the system's response time; feedback control adjusts the control signal in real-time according to the actual state of the system to achieve stable operation of the system; feedforward-feedback hybrid control combines feedforward control and feedback control to achieve more precise control effects.
3. Key Technologies of the Servo Proportional Hydraulic Valve Control System Design
Optimization design of the servo proportional valve
The performance of the servo proportional valve directly affects the performance of the entire hydraulic system. Therefore, optimizing the design of the servo proportional valve to have higher accuracy, faster response speed, and better linearity is the key to improving the performance of the hydraulic system.
Control system simulation and optimization
Using advanced simulation technology, the simulation of the servo proportional hydraulic valve control system can effectively verify the feasibility of the control strategy and optimize the control parameters, thereby improving the control accuracy and stability of the system.
Controller design and optimization
The design and optimization of the electro-hydraulic servo controller is an important link in the design of the servo proportional hydraulic valve control system. By optimizing the parameters of the controller, the control accuracy and response speed of the system can be improved, thus enhancing the performance of the entire hydraulic system.
4. Conclusion
The design and optimization of the servo proportional hydraulic valve control system is of great significance for improving the performance of the hydraulic system. By optimizing the design of the servo proportional valve, simulating and optimizing the control system, and designing and optimizing the controller, the control accuracy and stability of the system can be improved, thus meeting the needs of various hydraulic system applications with high control accuracy requirements.