دانلود Influence of Rotor Structure on Fault Diagnosis Indices in Two-Phase Switched Reluctance Motors
عنوان انگليسي
:
Influence of Rotor Structure on Fault Diagnosis Indices in Two-Phase Switched Reluctance Motors
چکیده
Abstract
In this paper, the influence of rotor structure on fault diagnosis indices variations is studied for Switched Reluctance Motors) SRM). To achieve this aim, two novel SRMs namely as slanted-rotor SRM (SL-SRM) and stepped-rotor SRM (ST-SRM) are analyzed and tested accompanied with a conventional SRM. Accordingly, three popular indices as mutual inductance index (MII), radial force index (RFI) and torque index (TI) variations are offered to diagnose the eccentricity fault occurrence evaluation in different structures. To assess motors characteristics, the variations of flux linkage, flux density and inductance as some of electromagnetic traits of SRM, SL-SRM and ST-SRM are obtained and analyzed utilizing three-dimensional transient finite element method (3D-TFEM). Afterward, all these three motors are subjected to eccentricity fault and the fault diagnosis indices are obtained individually in various levels of fault severities. Briefly speaking, the effect of rotor structure on all three of these indices is analyzed firstly. Secondly, the most robust and fault tolerant index independent of the motor’s structure is introduced for a specific application. To verify the simulation results, experimental findings are also included.
Keywords:
Reluctance motors Rotors Torque Stator windings
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