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.

DOI: 10.1504/IJMA.2018.095516

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 *

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