1 Automation & Control, The Faculty of Engineering and Science, Aalborg University, VBN2 Department of Electronic Systems, The Faculty of Engineering and Science, Aalborg University, VBN3 Aalborg University Space Center, The Faculty of Engineering and Science, Aalborg University, VBN4 unknown
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.
Proceedings of the 13th Mediterranean Conference on Control and Automation, 2005, p. 1068-1073