Development of an Adaptive Control System for Hydraulically Actuated Plug Valves

Key Points

• The aim is to achieve precise flow control in high-pressure hydraulic plug valves using adaptive control methods.
• Conducted computational structural analysis to verify stability under high-pressure conditions.
• Performed computational fluid dynamics analysis to determine maximum torque requirements.
• Designed and fabricated an electro-hydraulic actuator to meet specified demands.
• Developed a fourth-order state space model to reflect the complexities of the hydraulic system.
• Applied model reference adaptive control with variable gain for improved system response.
• Demonstrated significant improvements in response time and stability of the control system.
• Resolved convergence speed issues present in traditional MRAC approaches.
• Validated the reliability of the high-pressure valve system through comprehensive solution integration.

Abstract