| 摘要 |
<p>PURPOSE:To reduce the torque pulsation on the subject commutatorless motor by a method wherein the armature winding of the motor is splitted and arranged shifting the phases, and the splitted parts are controlled by an inverter or a cycloconverter having necessary phases respectively. CONSTITUTION:For instance, when the armature winding is divided into two equal parts, one of them is arranged by shifting 30 deg. in electrical against the other part, a three-phase winding is formed for each part and each winding is driven by an independent inverter or a cycloconverter. The torque pulsation when the above windings are controlled by a position detector in such way that the phase control angle of lead of beta0 to become pi/3, the torque pulsation (b) indicates a sharp decrease as compared with the case when they are not divided (a) as it has been done hitherto. When the armature winding is actually divided and arranged, with the groove number q of 4 for each pole and phase and the divided number of the armature winding is 2, the U2 phase is to be arranged like (b') by shifting 30 deg. in electric angle based on the u1 phase.</p> |
