Internal model control using active disturbance rejection control with time delay

2016 ◽  
Author(s):  
Naoaki Ikemoto ◽  
Ryo Tanaka ◽  
Yoshihisa Ishida
Keyword(s):  
Time Delay ◽  
Disturbance Rejection ◽  
Internal Model ◽  
Internal Model Control ◽  
Active Disturbance Rejection Control ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Model Control

scholarly journals Analysis and Tuning for Active Disturbance Rejection Control

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Fan Wang ◽  
Ran-Jun Wang ◽  
En-Hai Liu
Keyword(s):  
Disturbance Rejection ◽  
Parameter Tuning ◽  
Open Loop ◽  
Internal Model Control ◽  
System Stability ◽  
Theoretical Principle ◽  
Active Disturbance Rejection Control ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Model Control

The linear active disturbance rejection control (LADRC) method is investigated in this paper. Firstly, the integral effect of the ADRC is analyzed under the premise that ADRC was transformed into a new form. Then, ADRC is changed into an internal model control (IMC) framework, and an almost necessary and sufficient condition for stability and tracking performance of the ADRC system are proposed on this basis. In addition, some useful corollaries are proposed so that the traditional open-loop frequency-domain analysis method can be applied to ADRC system stability analysis. It also provides a theoretical principle and theoretical guidance for some parameter tuning. To improve the performance of ADRC, an approximate integral gain is treated as a separated adjustable parameter according to the new structure. Furthermore, tuning of some parameters is discussed to enhance system performance. Finally, simulations are used to verify the effectiveness of proposed methods.

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