Title :
On parameters tuning and capability of sampled-data ADRC for nonlinear coupled uncertain systems
Author :
Wenchao Xue ; Yi Huang
Author_Institution :
Key Lab. of Syst. & control, Acad. of Math. & Syst. Sci., Beijing, China
Abstract :
This paper concerns with the parameters tuning and the capability of Active Disturbance Rejection Control (ADRC) to deal with the nonlinear uncertain system under fixed sampling rate. Firstly, a three-dimension criterion is proposed to describe the uncertainties for a typical class of nonlinear systems. We give a rule of designing ADRC to reach the control objects including exponential stability and transient performance recovery of a reference trajectory. The rule quantitatively shows the relationship among the parameters of ADRC, the sampling rate and the uncertainty to be dealt. Finally, we investigate the capability of sampled-data ADRC under given sampling rate.
Keywords :
asymptotic stability; control system synthesis; nonlinear control systems; robust control; sampled data systems; sampling methods; uncertain systems; 3D criterion; active disturbance rejection control; control objects; exponential stability; fixed sampling rate; nonlinear coupled uncertain systems; parameters capability; parameters tuning; reference trajectory; sampled-data ADRC; sampling rate; transient performance recovery; Closed loop systems; Trajectory; Transient analysis; Tuning; Uncertain systems; Uncertainty; active disturbance rejection control (ADRC); exponential stability; nonlinear coupled uncertain systems; parameters tuning; sampled-data control; transient performance recovery;
Conference_Titel :
Control Conference (CCC), 2013 32nd Chinese
Conference_Location :
Xi´an
