| 摘要 |
PURPOSE: A motor controller is provided to rapidly determine an abnormal operation by including an abnormality determining unit when a motor initially operates. CONSTITUTION: A controller includes an axis transformation unit(301), an abnormality determining unit(340), an estimator(305), a current command generator(310), a voltage command generator(320), and a switching control signal output unit(330). The axis transformation unit axially transforms a three phase output current to a stationary coordinate system. The abnormality determining unit determines an abnormal operation based on the axially transformed current value. The estimator estimates the speed of the motor based on the axially transformed current value. The current command generator generates the current command based on the estimation speed and the speed command. The voltage command generator generates the voltage command based on the axially transformed current value and the current command. A switching control signal output unit outputs an inverter switching control signal based on the voltage command. |
