A Control System of a Full-Step-Driven Stepping Motor with a Compensator for Rotor Oscillation Damping

Abstract

The authors present a new pre-compensator used for control of a stepping motor in the oscillation-damping type full-step drive system. The compensator is a low-pass filter, in which the cut-off frequency varies with reference speed variation, and is used for adjustment of reference angle waveform. The effect of this system for rotor oscillation damping is verified by the experiment.Keywords: stepping motor, full-step drive, pre-compensator, rotor oscillation damping 1.(1) (2) (3) 2.(2) 2 * 010-8502 1-1 Dept. of Electrical and Electronic Engineering, Faculty of Engineering and Resource Science, Akita University 1-1, Tegata Gakuen-machi, Akita 010-8502(1)1 1 ω r ω r 536

Method to Reduce Stepping Motor Vibration Using Type-2 Pre-compensator

“…In Ref. (3), on the other hand, a variable cut-off-frequency type filter was used to dispense with prediction control. Since the cut-off frequency of the variable filter frequently varies with time, users cannot systematically design the filter in the frequency domain.…”