| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor control device capable of reducing a current ripple.SOLUTION: A motor control device 100 applies a voltage vector to a three-phase motor 102 by PWM control using an inverter so that the absolute value of an armature interlinkage magnetic flux and the motor torque of the three-phase motor 102, respectively, follow a magnetic flux command and a torque command. The motor control device 100 comprises: a switching table 111 for selecting an output voltage vector determining a direction of the voltage vector; a duty operation unit 112 for identifying a duty variable corresponding to the absolute value of the voltage vector, which is smaller as the absolute value of a torque deviation is smaller and is larger as the absolute value of the torque deviation is larger; and a duty generation unit 113 for generating a duty vector used when the inverter generates the voltage vector, from the output voltage vector and the duty variable. |
