Abstract
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 quick 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, multi-step drive for variable reluctance stepping motors are studied. The multi-step drive is achieved by the inverse-phase excitation damping using fuzzy reasoning. The availability of the proposed method is shown by numerical simulations and experiments. As the result, it has been found that the proposed method is carried out by simple excitation sequence in short time. Therefore, the quick positioning control of rotor position is possible. Since the rule-type fuzzy reasoning of the proposed method is made up easily, the system cost of the proposed damping control would be inexpensive.
