On the Equivalence between PID-like Controller and LADRC for Second-order Systems
PROCEEDINGS OF 2020 IEEE 9TH DATA DRIVEN CONTROL AND LEARNING SYSTEMS CONFERENCE (DDCLS'20)
In this paper, the equivalence is established between the linear active disturbance rejection control (LADRC) and the two-degree of freedom (2-DOF) proportional-integral-derivative (PID) with lead-lag compensators. This allows advantage of LADRC, particularly its bandwidth-parameterization strategy, to be incorporated into the run-of-mill PID controllers. Specifically, the competing design objectives in disturbance rejection, tracking, and noise sensitivities can now be handled with ease.
Li, Xiangyang; Gao, Zhiqiang; Ai, Wei; and Tian, Senping, "On the Equivalence between PID-like Controller and LADRC for Second-order Systems" (2020). Electrical Engineering & Computer Science Faculty Publications. 493.