DocumentCode :
3172416
Title :
Multirate Sampled-Data Output Feedback Control of Smart Material Actuated Systems
Author :
Ahrens, Jeffrey H. ; Tan, Xiaobo ; Khalil, Hassan K.
Author_Institution :
Corning Inc., Corning
fYear :
2007
fDate :
9-13 July 2007
Firstpage :
4327
Lastpage :
4332
Abstract :
We consider multirate sampled-data output feedback control of smart material actuated systems where the measurement sampling rate is made faster than the control update rate. This scheme combines a discrete-time high-gain observer with a hysteresis inversion controller where the hysteresis is modeled using a Preisach operator. We show that the sampled-data output feedback controller achieves stabilization with respect to a closed set in the presence of hysteresis modeling uncertainty. Experimental results for the control of a shape memory alloy actuated rotary joint are provided.
Keywords :
actuators; discrete time systems; feedback; intelligent materials; observers; sampled data systems; uncertain systems; Preisach operator; actuated rotary joint; discrete-time high-gain observer; hysteresis inversion controller; measurement sampling rate; modeling uncertainty; multirate sampled-data output feedback control; shape memory alloy; smart material actuated systems; Control systems; Hysteresis; Intelligent actuators; Nonlinear systems; Observers; Output feedback; Sampling methods; Shape control; Shape memory alloys; State feedback;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
American Control Conference, 2007. ACC '07
Conference_Location :
New York, NY
ISSN :
0743-1619
Print_ISBN :
1-4244-0988-8
Electronic_ISBN :
0743-1619
Type :
conf
DOI :
10.1109/ACC.2007.4282914
Filename :
4282914
Link To Document :
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