| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor control apparatus which has a means for compensating for a phase delay of a current control and improving a response of a current control system. SOLUTION: The motor control apparatus comprises, a current observer for estimating a present current value by using a model of one phase of a motor obtained from voltage instruction value for each phase and a current detection value of a three phase motor 1, and a disturbance observer for estimating a present disturbing voltage by means of a minimum dimension observer using the model of one phase of motor from the voltage instruction value and the detected current value for each phase. An estimated current value at a current detection is used to control the current by using the current detecting observer that organizes previous estimated values of the current observer and the disturbance observer. |
