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Inverse generalized asymmetric Prandtl-Ishlinskii model for compensation of hysteresis nonlinearities in smart actuators

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4 Author(s)
Al Janaideh, M. ; Dept. of Mech. & Ind. Eng., Concordia Univ., Montreal, QC ; Rakheja, S. ; Jianqin Mao ; Chun-Yi Su

Smart actuators, such as magnetorestrictive actuators, shape memory alloy (SMA) actuators, and piezoceramic actuators, generally exhibit symmetric and asymmetric hysteresis loops. In this paper, a generalized Prandtl-Ishlinskii model with an asymmetric play operator is utilized for describing asymmetric hysteresis nonlinearities in smart actuators. Furthermore, a corresponding inverse of the asymmetric Prandtl-Ishlinskii model is presented as a compensator for the purpose of removing the hysteresis effects in the control systems. Such a compensation is experimentally illustrated by a piezoceramic actuator.

Published in:

Networking, Sensing and Control, 2009. ICNSC '09. International Conference on

Date of Conference:

26-29 March 2009

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