Title :
Feedforward Control of Shape Memory Alloy Actuators Using Fuzzy-Based Inverse Preisach Model
Author :
Nguyen, Bao Kha ; Ahn, Kyoung Kwan
Author_Institution :
Autom. Control Dept., Hochiminh City Univ. of Technol., Ho Chi Minh City
fDate :
3/1/2009 12:00:00 AM
Abstract :
This brief investigates a possible application of the inverse Preisach model in combination with the feedforward and feedback control strategies to control shape memory alloy actuators. In the feedforward control design, a fuzzy-based inverse Preisach model is used to compensate for the hysteresis nonlinearity effect. An extrema input history and a fuzzy inference is utilized to replace the inverse classical Preisach model. This work allows for a reduction in the number of experimental parameters and computation time for the inversion of the classical Preisach model. A proportional-integral-derivative (PID) controller is used as a feedback controller to regulate the error between the desired output and the system output. To demonstrate the effectiveness of the proposed controller, real-time control experiment results are presented.
Keywords :
control system synthesis; feedback; feedforward; fuzzy control; fuzzy set theory; intelligent actuators; shape memory effects; three-term control; feedback control strategies; feedforward control design; fuzzy inference; fuzzy-based inverse Preisach model; proportional-integral-derivative controller; shape memory alloy actuators; Compensation; fuzzy; hysteresis; inverse; preisach model; shape memory alloy (SMA) actuators;
Journal_Title :
Control Systems Technology, IEEE Transactions on
DOI :
10.1109/TCST.2008.924580