Free Stator Modeling of a Traveling Wave Ultrasonic Motor

Author

Mojallali, Hamed ; Amini, Rouzbeh ; Izadi-Zamanabadi, Roozbeh ; Helbo, Jan ; Jalali, Ali A. ; Poshtan, Javad

Author_Institution

Dept. of Electr. Eng., Iran Univ. of Sci. & Technol., Tehran

fYear

2005

fDate

27-29 June 2005

Firstpage

1068

Lastpage

1073

Abstract

An equivalent circuit method describing the free stator of piezoelectric motor is presented in this paper, while the circuit elements have complex values. The mechanical, dielectric and piezoelectric losses associated with the vibrator are accounted for by the imaginary components of the circuit elements. It is shown that the calculation of the circuit parameters from the complex elastic, dielectric and piezoelectric material constants is straightforward and the model accuracy is verified with simulation around the important frequencies suitable for motor controller design purposes

Keywords

control system synthesis; elastic constants; equivalent circuits; machine control; permittivity; stators; ultrasonic motors; circuit elements; circuit parameters; dielectric loss; dielectric material constants; elastic material constants; equivalent circuit; free stator modeling; mechanical loss; motor controller design; piezoelectric loss; piezoelectric material constants; piezoelectric motor; traveling wave ultrasonic motor; vibrator; Admittance; Circuit simulation; Control engineering; Dielectric losses; Equivalent circuits; Frequency; Java; Piezoelectric materials; Stators; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control, 2005. Proceedings of the 2005 IEEE International Symposium on, Mediterrean Conference on Control and Automation

Conference_Location

Limassol

ISSN

2158-9860

Print_ISBN

0-7803-8936-0

Type

conf

DOI

10.1109/.2005.1467163

Filename

1467163