Motor Control Apparatus, Motor Drive Apparatus, and Device Using Same

Abstract

Disclosed are a motor control apparatus, a motor drive apparatus and a device that uses the same, with which, even if the electrical angular frequency is high, it is possible to detect a motor current fundamental wave component with high accuracy and to perform drive control on a motor in a stable manner. On the basis of a speed command (ω*) and a detected value (Iuvw) for motor current, this motor control apparatus creates a control signal (PWM) for controlling a motor (4) and comprises: a phase current detection means which detects the phase current of the motor; and a fundamental wave component extraction means (5) which extracts a fundamental wave component for the motor phase current detected by the phase current detection means. The fundamental wave component extracted by the fundamental wave component means is used as the detected value for motor current to create the control signal.

Dependencies are inferred from the claim text.