Title :
Piezoelectric motor driver: Design and evaluation
Author :
Golubovic, Edin ; Zhakypov, Z. ; Uzunovic, T. ; Sabanovic, Asif
Author_Institution :
Sabanci Univ., Istanbul, Turkey
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;
Conference_Titel :
Compatibility and Power Electronics (CPE), 2013 8th International Conference on
Conference_Location :
Ljubljana
Print_ISBN :
978-1-4673-4911-6
DOI :
10.1109/CPE.2013.6601155