Analysis of the methods for active off-line identification of the rotor time constant of induction motor in the drive systems
In paper present a results of research method identification the rotor time constant and the rotor resistance which basis are experimental data on transient motor current in the linear variation of the stator voltage. Identified significant shortcomings of this approach. And as replacement, the algorithm of off-line identification of the IM rotor time constant and the rotor resistance as a test the impact of harmonic voltage is offered. Defined of parameters, which the accuracy can affect the size of the error for the rotor time constant and the rotor resistance evaluation.