| 摘要 |
PROBLEM TO BE SOLVED: To appropriately suppress variation of a current supplied to a motor by appropriately controlling an inverter when voltage surge occurs at an output voltage of a converter of a driving circuit for driving the motor.SOLUTION: A controller 1 controls so that a time constant τ of a low pass filter in current feedback control of inverters 3a, 3b decreases on the basis of a current value running through a reactor L1, an operation status of a converter 2, control modes of inverters 3a, 3b, and torque of a motor 102a or 102b, thereby to improve control response of current feedback control and appropriately suppress fluctuations in an electric current supplied to the motor 102a or 102b due to voltage surge generated at a system voltage VH. |
