1995 Volume 7 Issue 2 Pages 442-450
The stepping motors are used as the driver for positioning in industry applications. It is well-known that the transient response of stepping motor is generally oscillatory in the case of open-loop operation. The rotor oscillation must be suppressed in quicl positioning applications. Accordingly, many researches about rotor positioning and suppression of rotor oscillation of stepping motors have been reported in recent years.In this paper, the suppression control of the rotor oscullation of variable reluctance stepping motors are studied. The supprssion control is acheved by the inverse-phase excitation damping using fuzzy reasoning. The availability of the proposed control is shown by numerical simulations and experiments. As the result, it has been found that the rotor oscillation effectively vanishes by simple excitation sequence. Therefore, the quick positioning control of rotor position is possible. Since the rule type fuzzy reasoning of the proposed control is made up easily, the construction cost of the proposed damping control would be inexpensive.
