DEVICE FOR ASSESSMENT OF ELECTRIC MOTOR PARAMETRES Russian patent published in 2010 - IPC H02P7/06 

FIELD: electricity.

SUBSTANCE: invention refers to automated electric drive. Device for assessment of electric motor parametres comprises asynchronous electric motor, parametres of which are to be assessed, sensor of rotation frequency, connected to shaft of electric motor, sensors of longitudinal current of stator, its derivative, transverse current of stator, its derivative, longitudinal voltage of stator, transverse voltage of stator, longitudinal current of rotor, its derivative, transverse current of rotor, its derivative, frequency of shaft rotation, sensor of angular acceleration mechanically connected to shaft of electric motor; external signal of rotation angle of system of orthogonal coordinates, having longitudinal and transverse axes, device of differentiation, multipliers, summators, scaling devices and integrators. Application of this device in automated asynchronous electric drive allows for implementation of modal, adaptive and other self-tuning control systems.

EFFECT: application of device for assessment of electric motor parametres with asynchronous electric motors and increased number of assessed parametres of electric motor.

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