Active Disturbance Rejection Control

Zhiqiang Gao, PhD | Biography
Center for Advanced Control Technologies

Keywords: PID, ADRC, Motion Control, Process Control

Description

PID, the century-old, dominant technology of today, reacts to the undesired deviation of the process variables.

ADRC aims to remove its root cause by negating actively the disturbances in and out of the physical process. Single parameter tuning ensures the ease of use even for the machine operators with limited knowledge and skills.

Business Applications

Motion control: adopted by Texas Instruments; Freescale (NXP); Parker; Rockwell Automation; Danfoss.
Process control: adopted by Parker Extrusion Facility; Samsung; 1 GW Power Plant, China; Particle Accelerator NSCL at MSU.

Case Study

Write up in 2016 Danfoss Publication, upon acquisition
of Linestream, Dr. Gao's ADRC software company:

Texas Instruments licensed LineStream's IP and brought
ADRC to control chips for a variety of machines motors: