Article

A novel practical control approach for rate independent hysteretic systems.

Department of Mechanical & Electrical Engineering, Georgia Southern University, Statesboro, GA 30460, USA.
ISA transactions (impact factor: 1). 02/2012; 51(3):477-84. DOI:10.1016/j.isatra.2012.01.006 pp.477-84
Source: PubMed

ABSTRACT A disturbance rejection based control approach, active disturbance rejection control (ADRC), is proposed for hysteretic systems with unknown characteristics. It is an appealing alternative to hysteresis compensation because it does not require a detailed model of hysteresis, by treating the nonlinear hysteresis as a common disturbance and actively rejecting it. The stability characteristic of the ADRC is analyzed. It is shown that, in the face of the inherent dynamic uncertainties, the estimation and closed-loop tracking errors of ADRC are bounded, with their bounds monotonously decreasing with the observer and controller bandwidths, respectively. Simulation results on a typical hysteretic system further demonstrate the effectiveness of the proposed approach.

0 0
 · 
0 Bookmarks
 · 
44 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

active disturbance rejection control
 
appealing alternative
 
bounds monotonously decreasing
 
closed-loop
 
common disturbance
 
controller bandwidths
 
detailed model
 
disturbance rejection
 
hysteretic systems
 
inherent dynamic uncertainties
 
stability characteristic
 
typical hysteretic system
 
unknown characteristics
 

Frank J. Goforth