Title: Modelling, design, and real time implementation of robust H-infinity position control of piezoelectric actuator drive
Authors: M. Brahim; Y. Bernard; I. Bahri
Addresses: Group of Electrical Engineering-Paris, Univ Paris-Sud, 3 rue Joliot Curie 91192 Gif sur Yvette, France ' Group of Electrical Engineering-Paris, Univ Paris-Sud, 3 rue Joliot Curie 91192 Gif sur Yvette, France ' Group of Electrical Engineering-Paris, Univ Paris-Sud, 3 rue Joliot Curie 91192 Gif sur Yvette, France
Abstract: This paper deals with the synthesis, design, and implementation of robust H-infinity (H∞) position controller of piezoelectric actuator drive (PAD). The PAD is an accurate rotary piezoelectric motor that employs the elongation of stack actuators and the micro-toothed ring and shaft to generate precise rotation motion. The motor position depends on precise adjustment between the motor ring and shaft and therefore demands a closed loop control to overcome the maladjustment problems. In this paper, Simulink model of the PAD is firstly proposed. Robust H∞ position controller is then designed, implemented, and validated by simulation and experimental tests.
Keywords: piezoelectric motor; PAD; piezoelectric actuator drive; H∞; robustness; position control.
International Journal of Mechatronics and Automation, 2018 Vol.6 No.4, pp.151 - 159
Received: 10 Aug 2017
Accepted: 14 May 2018
Published online: 08 Oct 2018 *