Active disturbance rejection control: methodology and theoretical analysis

Area of Science:

• Control Engineering
• Nonlinear System Theory
• Robotics

Background:

• Nonlinear uncertain systems pose significant control challenges.
• Traditional control methods often struggle with unpredictable dynamics.
• Active Disturbance Rejection Control (ADRC) has emerged as a powerful alternative.

Purpose of the Study:

• To review the methodology and theoretical progress of ADRC.
• To highlight ADRC's breakthroughs in controlling nonlinear uncertain systems.
• To elucidate the critical role of total disturbance estimation in ADRC.

Main Methods:

• Review of existing literature on ADRC.
• Analysis of theoretical advancements in ADRC.
• Discussion of key breakthroughs enabled by ADRC.

Main Results:

• ADRC effectively addresses nonlinear and uncertain system dynamics.
• Accurate estimation of 'total disturbance' is central to ADRC's success.
• Significant theoretical progress has been made in analyzing ADRC systems.

Conclusions:

• ADRC provides a robust framework for controlling complex systems.
• Further theoretical analysis continues to enhance ADRC's capabilities.
• ADRC represents a significant advancement in modern control theory.