| 摘要 |
PURPOSE: To obtain a device for controlling vector of an induction motor, which can control the torque of the induction motor with high accuracy even when the constant of the induction motor contains an error. CONSTITUTION: A first estimated value estimated by a first magnetic flux estimating means 33 is controlled so that the estimated value can follow a second estimated value estimated by a second magnetic flux estimating means 34 and the vector of an induction motor 1 is controlled on rectangular coordinates (d and q axes) which rotate synchronously to the first estimated value by inputting the signal obtained by amplifying the difference between the first and second estimated values to a correcting means 35 as the correcting signal to the first magnetic flux estimating means 33. |
