PERMANENT MAGNET SYNCHRONOUS MOTOR CONTROL DEVICE AND METHOD BASED ON A FULL ORDER STATE OBSERVATION PLANE WHICH IMPROVES CONTROL ANGLE ESTIMATION ACCURACY DEGREE

摘要

PURPOSE: A permanent magnet synchronous motor control device and method of a full order state observation plane are provided to improve control performance by estimating counter electro-motive force of an interior permanent magnet synchronous motor (IPMSM). CONSTITUTION: An observation unit computes a control angle error of counter electro-motive force. A velocity estimation unit estimates the control angle and speed of an electric motor. A current controller outputs a voltage command value. A full order observation plane produces the counter electro-motive force. A proportional integral controller estimates the speed of the electric motor.