ADRC Active Disturbance Rejection Control

ADRC Active Disturbance Rejection Control is a highly efficient control methodology that effectively suppresses external disturbances to achieve ideal output performance. This control approach performs real-time estimation of system disturbances and incorporates these estimated values as controller inputs, enabling adaptive system control. Compared with traditional control methods, ADRC demonstrates superior robustness and adaptability, maintaining excellent control performance even in complex operational environments. The implementation typically involves an Extended State Observer (ESO) that estimates both system states and aggregated disturbances, with the control law designed to actively compensate for these disturbances. A key advantage is that desired output can be achieved simply by tuning input parameters, making it highly practical for implementation. Common implementation approaches include parameter configuration for the tracking differentiator, nonlinear state error feedback, and disturbance observation compensation. Therefore, ADRC Active Disturbance Rejection Control represents a highly recommendable control strategy with broad application prospects across various industrial domains.