| 摘要 |
PROBLEM TO BE SOLVED: To reduce torque ripples of a reluctance type motor by generating flat torques in salient poles. SOLUTION: By applying a current to a coil from before salient poles overlap (region of zero inductance value), a sufficient current has been supplied to a coil, when an inductance value is raised. From the first stage when the salient poles begin to overlap, flat torque is generated. By stopping the current supply to the coil before the salient poles overlap (before the rising change point of the inductance value), the current supply to the coil is stopped in a state where the inductance value is raised constantly. Until immediately, before the current supply is stopped, flat torque can be generated. From the first stage when the salient poles overlap until the latter half when the salient poles have overlapped, flat torque can be generated, and torque ripples of a reluctance type motor can be reduced. |
