Title :
Dynamic analysis of inverter-fed ultrasonic motors
Author :
Maas, J. ; Grotstollen, H.
Author_Institution :
Inst. for Power Electron. & Electr. Drives, Paderborn Univ., Germany
Abstract :
A rotary traveling wave type ultrasonic motor powered by a resonant power converter is analyzed by simulation to optimize the overall drive performance and to develop suitable control strategies for the drive. Based on a detailed simulation model for the total electromechanical system of the drive, various phenomena such as the well known pull-out phenomenon are verified by individual modeling aspects and explained by simulation. As the total characteristics are reflected by the simulation model and verified by measurements, a general control scheme for speed variable ultrasonic drives is suggested ensuring optimal torque utilization and minimized losses
Keywords :
DC-AC power convertors; control system analysis; invertors; machine control; machine theory; motor drives; resonant power convertors; ultrasonic motors; variable speed drives; velocity control; adjustable speed drives; characteristics; control scheme; electromechanical system; inverter; minimized losses; optimal torque utilization; pull-out phenomenon; resonant power converter; rotary traveling wave-type motor; simulation model; ultrasonic motor drive; Analytical models; Electromechanical systems; Loss measurement; Optimal control; Performance analysis; Power system modeling; Resonance; Torque measurement; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548822
