Motor controller and motor control method

Abstract

A motor controller is configured or programmed to include a rotational speed acquirer to acquire an actual rotational speed of a motor including a rotor that includes permanent magnets, a commanded voltage calculator to calculate a commanded voltage to be supplied to the motor based on a difference between the actual rotational speed and a target rotational speed, and a feed-forward compensator to compensate the commanded voltage by an amount equal to an induced voltage in the motor based on the target rotational speed. The feed-forward compensator includes a compensation value calculator to calculate a feed-forward compensation value on which smoothing processing has been performed and an adder to add the feed-forward compensation value to the commanded voltage.

Dependencies are inferred from the claim text.