DocumentCode :
2426845
Title :
High performance and high precision ultrasonic motor-actuated positioning servo drive system using improved fuzzy-reasoning controller
Author :
Izuno, Yuji ; Nakaoka, Mutsuo
Author_Institution :
Electro Technol. Center, Kubota Corp., Japan
fYear :
1994
fDate :
20-25 Jun 1994
Firstpage :
1269
Abstract :
This paper presents the latest significant developments of ultrasonic motor (USM)-actuated servo drives suitable for direct-drive motion systems, which effectively introduce the practical fuzzy-reasoning controller with speed and positional state-variable feedback schemes. The USM-actuated servo control system is schematically composed of the commercially-available travelling-wave type USM, mechanical loads, high-frequency DC-DC chopper regulator, two-phase high-frequency resonant inverter using parasitic piezo-electric load resonance parameters, pulse-encoder and its processing interface, and newly-developed fuzzy-reasoning software controller. The experimental breadboard is feasibly implemented and the software of the fuzzy-reasoning controller is designed for the specific USM characteristics and USM-related control loops. The experimental verifications are illustrated and their results are evaluated using a one-axis servo motion drive system from a practical point of view. It is proved that a new compact servo motion drive system using USM which incorporates the microprocessor-based two-input and one-output fuzzy-reasoning controller is cost-effective and more acceptable for certain direct drive applications
Keywords :
controllers; digital control; fuzzy control; machine control; microcomputer applications; motion control; motor drives; piezoelectric actuators; position control; power engineering computing; servomotors; ultrasonic motors; control loops; direct-drive motion systems; fuzzy-reasoning controller; high performance; high precision; high-frequency DC-DC chopper regulator; mechanical loads; microprocessor-based; one-axis servo motion drive system; parasitic piezo-electric load resonance parameters; processing interface; pulse-encoder; state-variable feedback schemes; travelling-wave US motor; two-phase high-frequency resonant inverter; ultrasonic motor-actuated positioning servo drive; Choppers; Control systems; Motion control; Regulators; Resonance; Resonant inverters; Servomechanisms; Servomotors; Servosystems; State feedback;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE
Conference_Location :
Taipei
Print_ISBN :
0-7803-1859-5
Type :
conf
DOI :
10.1109/PESC.1994.373845
Filename :
373845
Link To Document :
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