Investigation of Torque Performance and Flux Reversal Reduction of a Three-Phase 12/8 Switched Reluctance Motor Based on Winding Arrangement

Ruchao Pupadubsin, Seubsuang Kachapornkul, Prapon Jitkreeyarn, Pakasit Somsiri and Kanokvate Tungpimolrut
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Ruchao Pupadubsin: Machines and Power Conversions Research Team, National Electronics and Computer Technology Center, National Science Technology Development Agency, Pathum Thani 12120, Thailand
Seubsuang Kachapornkul: Machines and Power Conversions Research Team, National Electronics and Computer Technology Center, National Science Technology Development Agency, Pathum Thani 12120, Thailand
Prapon Jitkreeyarn: Machines and Power Conversions Research Team, National Electronics and Computer Technology Center, National Science Technology Development Agency, Pathum Thani 12120, Thailand
Pakasit Somsiri: Machines and Power Conversions Research Team, National Electronics and Computer Technology Center, National Science Technology Development Agency, Pathum Thani 12120, Thailand
Kanokvate Tungpimolrut: Machines and Power Conversions Research Team, National Electronics and Computer Technology Center, National Science Technology Development Agency, Pathum Thani 12120, Thailand

Energies, 2022, vol. 15, issue 1, 1-17

Abstract: The goal of this paper is to present a comparative analysis of two types of winding arrangements for a three-phase 12/8 switched reluctance motor (SRM), where short- and fully-pitched winding arrangements under unipolar operation are considered. From the analytical results, the short-pitched winding has the best torque per copper weight ratio. The core loss based on counting the number of flux reversals in the stator yoke for each winding arrangement is also proposed and mentioned. To reduce the magnetic flux reversals in the stator core, changing the direction of the magnetic flux path by modifying the winding polarities of the short-pitched winding could reduce 10–13% of core loss compared to the conventional winding. A 1 kW, 12/8 SRM prototype for the ventilation fan application is constructed and tested in order to verify the design consideration of winding configuration. At the rated condition, a maximum efficiency around 82.5% could be achieved.

Keywords: switched reluctance machine; winding arrangement; static torque; dynamic torque; torque ripple; core loss; flux reversal; leakage-flux; magnetic flux path (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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