Research on Vibration Suppression Method Based on Double Loop Position Feedback Control

Area of Science:

• Control Systems Engineering
• Robotics
• Mechatronics

Background:

• Traditional semi-closed-loop control suffers from limited position accuracy.
• Full closed-loop control can be susceptible to system nonlinearities, causing vibration.
• Existing methods struggle to balance position accuracy and vibration suppression.

Purpose of the Study:

• To propose a robust control strategy for improved position accuracy and vibration reduction.
• To address the limitations of traditional and full closed-loop control systems.
• To enhance the servo control performance of motor-driven systems.

Main Methods:

• A double-loop position feedback control framework utilizing motor and load state information.
• Integration of a linear extended state observer for state estimation.
• Implementation of torque feedback compensation and speed feedforward control for vibration suppression.

Main Results:

• Effective suppression of load vibration was demonstrated through simulations.
• Significant improvement in the system's overall servo control performance.
• Maintenance of high position control accuracy under dynamic conditions.

Conclusions:

• The proposed double-loop position feedback control effectively mitigates vibration.
• The method enhances servo control performance while preserving position accuracy.
• This approach offers a viable solution for precision motion control applications.