Effect of Number of Stator Slots on the Starting Torque of a Line-Start Three-Phase Reluctance Motor with Double Rotor Cage Bars

Mabushu Sikhonde, Mbika Muteba

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

This paper analyses the effect of number of stator slots on the starting torque of a three-phase Line-Start Synchronous Reluctance Motor (LS-SynRM) with double rotor cage bars. The analysis focuses on distributed three-phase windings housed in 24 stator-, 36 stator-and 48 stator-slot cores. The machines have been designed with the same dimensions and rotor specifications but with different number of turns per phase. A winding function approach is utilized to study the magnetomotive force (MMF) distribution of each stator winding configuration under full-load operation. The 2D Finite Element Analysis (FEA) under ac magnetic transient solution is used to simulate the flux-density and the torque characteristics, under full-load operation. The FEA results evidenced that all three LS-SynRMs stall for about ± 20 mSec at starting, before the acceleration begins. A prototype of the LS-SynRM with 36 slot is manufactured and tested. The results are within the simulated results.

Original languageEnglish
Title of host publication2022 International Conference on Electrical Machines, ICEM 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages269-275
Number of pages7
ISBN (Electronic)9781665414326
DOIs
Publication statusPublished - 2022
Event2022 International Conference on Electrical Machines, ICEM 2022 - Valencia, Spain
Duration: 5 Sept 20228 Sept 2022

Publication series

Name2022 International Conference on Electrical Machines, ICEM 2022

Conference

Conference2022 International Conference on Electrical Machines, ICEM 2022
Country/TerritorySpain
CityValencia
Period5/09/228/09/22

Keywords

  • Double rotor cage bars
  • finite element method
  • line-start synchronous reluctance motor
  • Number of stator slots
  • parasitic torque
  • skin-effect
  • starting torque
  • winding function

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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