AUTOMATED MOTOR ADAPTATION
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United States of America Patent
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Issued Date -
Jun 25, 2015
app pub date -
Jul 11, 2013
filing date -
Aug 9, 2012
priority date (Note) -
Abandoned
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Abstract
A method of determining electromagnetic characteristics of an asynchronous motor system is described. A DC sequence is applied comprising DC vectors applied to different phases of the motor in tum. An AC sequence is also applied to different phases of the motor, the AC sequence including pulses having different DC offsets being applied to different phases of the motor. The DC and AC pulses are applied such that any torque generated is minimized. The data obtained is used to calculate the stator and rotor resistances of the motor, the non-linearity of an inverter of the motor system and the nominal stator transient and magnetizing inductances of the motor.
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