Rotating machine control device

A rotating machine control device for controlling a rotating machine having a stator winding and a field winding, the rotating machine control device comprising:

• a temperature information acquirer to acquire a temperature of the rotating machine;
• and
• a current command generator to generate a current command value on the basis of the temperature of the rotating machine acquired by the temperature information acquirer, wherein
• the current command generator includes
• a constraint condition setting circuitry to calculate a constraint condition on the basis of conditions of a torque command, stator winding voltage, stator winding current, and field winding current,
• an optimization calculator to calculate and output the current command value, using the constraint condition and an evaluation function set on the basis of the torque command, the stator winding voltage, the stator winding current, and the field winding current, and
• a constraint condition updater to update the constraint condition on the basis of the temperature of the rotating machine acquired by the temperature information acquirer, and
• the current command generator calculates and outputs the current command value, using the updated constraint condition.