Controller for synchromotor, electric equipment and module
2005
The present invention provides a control apparatus of a synchronous motor driving device which does not have a direct means of detecting AC synchronous motor rotor position and speed, when the load device or driving device internal periodic disturbance occurs, to suppress the periodic disturbance, We can achieve low vibration, low noise. May be achieved by providing the following means: a difference (axis error) by calculating the position of AC synchronous motor flux axis position, and the controller is assumed that the magnetic flux in the shaft, so that the correction zero speed to achieve the sensorless drive and, based on the calculated value of the axis error, the pulsating component extracting means or the load torque of the motor means occurs; and its compensating means.
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