Analytical investigation of rotor slot harmonics in a three phase induction motor with broken rotor bars

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“…[L s ] and [L r ] are the stator and rotor inductance matrices and are described by the same manner as in [9].…”

“…Other researchers have been investigated the influence of broken bar fault on the instantaneous power, activereactive power, instantaneous power factor, torque, external magnetic field analysis, current Park components, inverter input current analysis and supply voltage modulation when the machine is supplied by electrical power converters [4,5,6,7,8,9,10,11,12,13]. These techniques detect the broken bar fault at frequencies close to the dc component in the spectrum 2ksf s .…”

An analytical model for squirrel cage induction machine with broken rotor bars derived based on the multiple coupled circuit theory and the winding function approach

“…All the important approaches proposed in the literature for the modeling of SCIMs with faulty rotor can be classified into the following eight categories: Models which impose symmetry restrictions on the distribution of bar breakages along rotor periphery 13–17 ; Models which introduce the effect of one broken rotor bar by injecting a current in the damaged bar 18,19 ; Models which are based on the magnetically coupled equivalent circuit approach 12,20–30 ; Models which utilize the classical multiphase distributed winding approach 31–34 ; Models which exploit the complex space‐vector approach and the multi‐phase symmetrical component theory 35–37 ; Models which are effective but are less widely adopted 38–40 ; Models which approximate the effect of rotor bar breakage with the variations of equivalent resistance 41–53 ; Models which rely on the detailed solutions of the magnetic fields in machines 54–65 …”