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This study introduces velocity-sensitive and adaptive robust control for precise position and torque loading systems. Velocity-sensitive PID control outperforms conventional PID for position loading, enhancing system accuracy.

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Area of Science:

  • Robotics and Control Systems
  • Mechatronics Engineering

Background:

  • Conventional PID control has limitations in achieving high tracking precision for position and torque loading systems.
  • Velocity-sensitive control offers potential improvements over standard PID controllers.

Purpose of the Study:

  • To evaluate the tracking precision of position and torque loading systems using velocity-sensitive and adaptive robust control.
  • To compare the performance of velocity-sensitive PID control against conventional PID for position loading.
  • To develop and validate an adaptive robust controller for accurate torque loading.

Main Methods:

  • Implemented velocity-sensitive PID control for position loading and analyzed its performance against conventional PID.
  • Developed a mathematical model for torque loading based on dynamics analysis.
  • Designed an adaptive robust controller using a state-space equation for torque loading, incorporating a reference position trajectory generation in the upper controller and closed-loop position tracking in the lower controller.

Main Results:

  • Velocity-sensitive PID control demonstrated superior performance in position loading compared to conventional PID.
  • The adaptive robust controller, designed via dynamics analysis and state-space equations, achieved accurate torque loading.
  • An experimental platform confirmed the feasibility and advantages of the proposed control strategies.

Conclusions:

  • Velocity-sensitive control significantly enhances tracking precision for position loading systems.
  • Adaptive robust control provides an effective solution for accurate torque loading in dynamic systems.
  • The integrated velocity-sensitive and adaptive robust control approach offers a robust and advantageous solution for precision loading applications.