Title :
Adaptive Variable Structure Control of Hysteresis in GMM Actuators Based on Prandtl-Ishlinskii Model
Author :
Wang, Xingsong ; Mao, Yan ; Wang, Xiangjiang ; Su, Chunyi
Author_Institution :
Southeast Univ., Nanjing
Abstract :
Compared with PZT, the actuating circuit of giant magnetostrictive material (GMM) is easier to implement in engineering for its lower supply voltage. Though the strain of GMM is almost larger than PZT, it also needs to be amplified for practical applications. A press-bend amplification based giant magnetostrictive actuator (GMA) is designed for testing. The electromechanical system model for the GMA is presented, which consists of two subsystems, one is a rate-independent hysteretic model and the other is a linear transfer function with no hysteretic effect. The Prandtl-Ishlinskii (PI) model was employed for analyzing of the hysteresis in the GMA. Based on thoroughly discussion of the Prandtl-Ishlinskii model, an adaptive variable structure controller was designed, which ensured global stability of the control system and certain accuracy of tracking a desired trajectory. Both simulation and experiment results verified the correctness of the electromechanical model and the applicable of the proposed control method.
Keywords :
adaptive control; electromagnetic actuators; magnetostriction; variable structure systems; actuating circuit; adaptive variable structure control; electromechanical system; giant magnetostrictive material; press-bend amplification; Actuators; Adaptive control; Electric variables control; Hysteresis; Magnetic circuits; Magnetic materials; Magnetic variables control; Magnetostriction; Programmable control; Voltage;
Conference_Titel :
Industrial Electronics Society, 2007. IECON 2007. 33rd Annual Conference of the IEEE
Conference_Location :
Taipei
Print_ISBN :
1-4244-0783-4
DOI :
10.1109/IECON.2007.4460339