| 摘要 |
PURPOSE:To enable operating a motor at the highest efficiency by providing a command generator means for generating field current pattern at the highest efficiency corresponding to a torque command value as a field current command and for generating an armature current command by using a torque command value and an actual field current value. CONSTITUTION:A field current pattern value at the highest efficiency corresponding to a torque command value te* from a torque command apparatus 3 is generated from a pattern generator 4 as a field current command value to a field controller 7. On the other hand, an armature current command value to an armature controller 5 is generated from the pattern generator 4 by using an actual field current value obtained by a torque command value te* and a field current sensor 8. Because an armature current also converges on the highest pattern by such control, it is possible to realize the highest efficiency operation of a motor. |
