Experimental Core Loss Characterization of a Switched Reluctance Motor Stator
Source abstract
Abstract
Core loss significantly impacts the efficiency of a switched reluctance motor (SRM), especially under high-frequency operation. Conventional measurement methods are often inadequate for capturing losses in assembled stator cores, where flux paths are complex, and excitation waveforms are non-sinusoidal. In this paper, a core loss measurement method is introduced for SRM based on transformer induction theory, enabling time-domain reconstruction of magnetic field quantities from voltage and current waveforms. The method is validated using a ring core and SRM stator geometry with finite element analysis (FEA), replicating practical excitation conditions. An experimental setup is built with a fractional SRM stator core and custom-designed magnetizing yokes. The experimental setup captures induced voltage and current waveforms from the stator. The proposed method is experimentally validated over a wide frequency range from 100 Hz to 10,000 Hz and under varying flux density levels, confirming the applicability for practical core loss characterization of SRM stators.
Source: crossref · Quality: baseline
Affiliations
McMaster Automotive Resource Centre (MARC), McMaster University, Hamilton, ON L8S 4L8, Canada
Funding
Carpenter Technology · Natural Sciences and Engineering Research Council of Canada · Canada Foundation for Innovation
References (30)
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