| 摘要 |
PURPOSE:To accurately control at variable high speed by providing a leading element to compensate the delay of the primary current due to a leakage inductance to remove the interference due to the leakage magnetic flux, thereby improving the responsiveness of a torque. CONSTITUTION:The delay of the primary current is compensated to add a leading element 20 for removing the interference due to a leakage magnetic flux. In other words, a torque current command value I*T is fed as a coefficient through a coefficient unit 21 having the product (La.S) of an equivalent leakage inductance La and a differentiating coefficient S to the second matching circuit 8. When the element 20 for removing the interference due to the leakage inductance is added in this manner, the torque responsiveness is improved when the motor 2 is started. |
