Title :
Quick and precise position control of ultrasonic motors taking account of frictional force control
Author :
Senjyu, Tomonobu ; Miyazato, Hiroshi ; Uezato, Katsumi
Author_Institution :
Fac. of Eng., Ryukyus Univ., Okinawa, Japan
Abstract :
This paper presents a new position control scheme of traveling wave type ultrasonic motors. It is necessary for quick and precise position control to control both phase difference and driving frequency which takes account of frictional force control. This control system is based on an adaptive control for positioning and is able to compensate speed characteristic variations on ultrasonic motors. The effectiveness of this control scheme is demonstrated by experiments
Keywords :
adaptive control; compensation; control system synthesis; force control; friction; machine control; machine testing; machine theory; position control; ultrasonic motors; adaptive control; compensation; control design; driving frequency; frictional force control; phase difference; position control scheme; positioning; precision; speed characteristic variations; ultrasonic motors; Control systems; Cost function; Force control; Frequency control; Mathematical model; Position control; Resonant frequency; Rotors; Stators; Weight control;
Conference_Titel :
Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3008-0
DOI :
10.1109/IAS.1995.530287
