Publikacje

Abstract:

The estimation procedure of electromagnetic parameters of an induction motor
secondary multi-loop equivalent circuit is presented in the paper. The procedure is based on the
knowledge of the frequency characteristics of the inductance associated with the magnetic flux in
the air gap on the stator surface, derived from an electromagnetic field solution or determined
through measurement. The estimation of equivalent circuit electromagnetic parameters has been
carried out with the use of the genetic algorithm. In order to reduce the search space of potential
solutions, electromagnetic parameters, determined on the basis of the electromagnetic field
analysis conducted analytically, have been used to define the variability bounds of chromosomes
particular elements of the initial and subsequent populations. Founded on the analytical
calculations, the number of parallel connected two-terminals of the equivalent secondary circuit
has been determined in respect of the required accuracy of the rotor admittance frequency
characteristic representation by the circuit in the considered frequency range

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The Genetic Algorithm for an Electromagnetic Parameters Estimation of an Induction Motor Secondary Multi-Loop Equivalent Circuit