Piezoelectric motor driver: Design and evaluation

Author

Golubovic, Edin ; Zhakypov, Z. ; Uzunovic, T. ; Sabanovic, Asif

Author_Institution

Sabanci Univ., Istanbul, Turkey

fYear

2013

fDate

5-7 June 2013

Firstpage

203

Lastpage

208

Abstract

This work focuses on the design of driver for PiezoLegs actuator used for high precision positioning purposes. Motor is driven with the set of periodical voltages with known frequency, amplitude and phase shift between the phases. Motor´s operation has been investigated in detail and clear relationships between the amplitude and phase shifts between the driving voltages and motor step size have been established. According to the motor analysis, set of design requirements for the design of driver is given. Particular solution meeting these requirements and satisfying the given design constraints is presented. Driver is experimentally evaluated for power consumption and analyzed in frequency domain, it´s performance is compared to the performance of a commercially available driver for the same motor. Designed driver shows improved performance.

Keywords

frequency-domain analysis; motor drives; piezoelectric actuators; piezoelectric motors; power consumption; amplitude shift; frequency domain analysis; frequency shift; high precision positioning purposes; motor analysis; motor step size; periodical voltage; phase shift; piezoelectric motor driver; piezolegs actuator; power consumption; Actuators; Force; Legged locomotion; Mathematical model; Power demand; Pulse width modulation; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Compatibility and Power Electronics (CPE), 2013 8th International Conference on

Conference_Location

Ljubljana

ISSN

2166-9538

Print_ISBN

978-1-4673-4911-6

Type

conf

DOI

10.1109/CPE.2013.6601155

Filename

6601155