Abstract: A motor control device includes a switching element that controls a motor, a current control part that outputs a PWM signal for driving the switching element, and a setting part that sets a carrier frequency of the PWM signal. Further, a motor control part includes a torque ripple compensation part that sets a torque ripple compensation value based on a motor torque command value, the carrier frequency, and a rotation state of the motor. The current control part outputs the PWM signal based on the motor torque command value and the torque ripple compensation value.

Abstract: An inverter control device includes an inverter; a command value calculator; a phase compensator; an inverter controller; a d-q axes non-interference voltage command value calculator for calculating a d-q axes non-interference voltage command value to cancel out interference voltages and for outputting the d-q axes non-interference voltage command value to the command value calculator; and a reverse phase. The phase compensator calculates the amount of phase lead based on the rotation speed and a phase compensation time set in order to obtain a predetermined phase margin, and compensates for a phase based on characteristics inherent in the motor, by the amount of phase lead. The reverse phase compensator compensates for a phase of the d-q axes non-interference voltage command value by the same amount of compensation as the amount of phase lead in the opposite direction to the phase compensated for by the phase compensator.

Abstract: A motor control device includes a switching element that controls a motor, a current control part that outputs a PWM signal for driving the switching element, and a setting part that sets a carrier frequency of the PWM signal. Further, a motor control part includes a torque ripple compensation part that sets a torque ripple compensation value based on a motor torque command value, the carrier frequency, and a rotation state of the motor. The current control part outputs the PWM signal based on the motor torque command value and the torque ripple compensation value.

Abstract: An inverter control device includes an inverter; a command value calculator; a phase compensator; an inverter controller; a d-q axes non-interference voltage command value calculator for calculating a d-q axes non-interference voltage command value to cancel out interference voltages and for outputting the d-q axes non-interference voltage command value to the command value calculator; and a reverse phase. The phase compensator calculates the amount of phase lead based on the rotation speed and a phase compensation time set in order to obtain a predetermined phase margin, and compensates for a phase based on characteristics inherent in the motor, by the amount of phase lead. The reverse phase compensator compensates for a phase of the d-q axes non-interference voltage command value by the same amount of compensation as the amount of phase lead in the opposite direction to the phase compensated for by the phase compensator.