Análisis del Cortocircuito entre Espiras en Bobinados de la Máquina de Inducción utilizando la Teoría de Potencia Instantánea
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Abstract
In this paper, an interturn short -circuit fault detection strategy for Induction Machines (IM) is proposed. The strategy
is based on the instantaneous p ower theory (IPT). In order to analyze the effects of stator fault, a dynamic IM model
including interturn short-circuit fault for any of the phase-windings is used. Based on the voltages and currents
measurement on IM terminals, the IPT is used for calculate the active and reactive power current component in the α- β
reference frame. Finally, the decomposition of the active and reactive currents is performed to determine the effects of
the stator fault, particularly when the power supply voltage is distorted with the 5th harmonic. Simulation results are
presented for IM under different fault severities under unbalanced supply voltages, usual in industrial processes.
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