Diagnostically Oriented Experiments and Modelling of Switched Reluctance Motor Dynamic Eccentricity

Abstract

The article compares the results of experimental and modelling research of switched reluctance motor at two different operational states: one proper and one with mechanical fault, i.e., with dynamic eccentricity of the rotor. The experiments were carried out on a test bench and then the results were compared with mathematical modelling of quasi-static and dynamic analysis of 2D geometry model. Finally, it was examined how the operation with dynamic eccentricity fault of the motor affected its main physical parameter—the phase current. The analysis was presented in the frequency domain using the Fast Fourier Transform (FFT); however, individual current waveforms in the time domain are also shown for comparison. Applying results of the research could increase reliability of the maintenance of SRM and enhance its application in vehicles for special purposes as well as its military and industrial applications.

A Review of Flywheel Energy Storage System Technologies

“…For example, researchers have explored a new five-phase BFSPM for FESSs and generators with iron or hollow core stators [52,53]. Illustrations of some PM motor structures can be seen in Figures 7-9 [47,[54][55][56][57]. and suitability for high-speed operations.…”

Methods of Condition Monitoring and Fault Detection for Electrical Machines

“…An air gap is considered to be faulty if it exceeds 10% of the nominal value [55]. As shown in Figure 11, there are the following types of rotor eccentricity: static [56], dynamic [57], and elliptic [58]. Authors in [59] have discussed these cases.…”