Patent ID: 8073600
Filing Date: 2011-12-06
Classification: B60K,B60L,B60W,H02P,Y02T

Abstract:
1. A controller of a field winding type synchronous motor having a control means for performing control so as to generate a desired torque from a field winding type motor having a field winding on the rotor, wherein: said control means calculates an induced voltage being induced in the field winding by the pulsation of a d-axis current flowing in the magnetic flux direction of the motor, based on change amount in time of the d-axis current so as to suppress pulsation of a field current flowing in the field winding of the field winding type motor when pulsation is occurring on the d-axis current flowing in the magnetic flux direction of the motor, and compensates a field voltage of the field winding based on the induced voltage.