Title :
A study on the design and characteristics of the high frequency resonant inverter for ultrasonic motor drive using fuzzy controller
Author :
Cha, In-Su ; Park, Hae-Am ; Yu, Gwon-Jong ; Kim, Young-Dong ; Baek, Hyung-Lae
Author_Institution :
Dept. of Electr. & Electron. Eng., Dong Shin Univ., Chonnam, South Korea
Abstract :
In the present paper, a fuzzy logic based ultrasonic motor (USM) is used in order to properly control the speed and phase difference for the elasticity and viscosity of a robot joint. The traveling wave USM is driven by two-phase sine wave signals, and the phase difference of the signals is usually selected to +90° and -90° meaning high speed and maximum torque of the USM. In this paper, we describe USM rotational speed characteristics at no load. The first phase difference is adjusted in the range from +90° to -90° by fuzzy controller as is the reached target speed
Keywords :
fuzzy control; machine control; motor drives; phase control; robots; ultrasonic motors; velocity control; fuzzy controller; high frequency resonant inverter; high speed; maximum torque; no load; phase difference control; robot joint elasticity; robot joint viscosity; rotational speed characteristics; speed control; two-phase sine wave signals; ultrasonic motor drive; Resonant frequency; Resonant inverters;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1995., Proceedings of the 1995 IEEE IECON 21st International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3026-9
DOI :
10.1109/IECON.1995.483490
