FIELD: electrical engineering.
SUBSTANCE: invention relates to an automatic electric drive, particularly to automatic identification of electric drive parametres, and can be used in adaptive and self-adjusting systems. The device for estimating electric motor parametres contains a voltage sensor, current sensor, current derivative sensor, angular velocity sensor, angular acceleration sensor, multipliers, adders, error signal generator, scaling devices and integrators. Due to use of an adder, three multipliers, angular acceleration and voltage sensors, two scaling devices and two integrators, a device is made, which additionally estimates moment of inertia and static load moment without notable increase in number of calculations and complication of the device.
EFFECT: wider functional capabilities - further evaluation of moment of inertia and static load moment.
4 dwg
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