Active disturbance rejection control (ADRC) of electro-hydraulic servo system

Abstract

LADRC (Linear Active Disturbance Rejection Control) is a control method based on real-time estimation and compensation of internal and external disturbance of the system. The basic idea is to set up a dynamic and real-time interference observer to estimate all kinds of interference to the system, and use these estimates to adjust the output of the controller in real time, so as to suppress the ability of the system to be affected by interference and realize the accurate control of the system.

Keywords

• electro-hydraulic servo
• force control
• modeling
• simulation
• ADRC