Sinusoidal-Flux Reluctance Machine Driven with Three-Phase Inverter for Improving Power Density with Reduced Torque and Input Current Ripples

Masaki Iida, Kazuhiro Umetani, Takayuki Kusumi, Masataka Ishihara, Eiji Hiraki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Reluctance machines such as the switched reluctance machines (SRMs) and the synchronous reluctance machines (SynRMs) are recently investigated for propulsion motors of the electrified vehicles owing to their robust mechanical construction, high thermal tolerance, and cost-competitiveness. However, practical application of the reluctance machines to the vehicle propulsion has been hindered by the fact that the conventional SRMs and SynRMs are difficult to meet all the three preferable features for the vehicular application: 1. High power density, 2. Low torque and input-current ripples, 3. Being drivable by the normal three-phase inverter. This paper addresses this issue by proposing a novel reluctance machine. The prominent features of the proposed reluctance machine are the sinusoidal reluctance profile and the delta-connected phase windings, both of which differ from conventional reluctance machines. Along with the theoretical discussion of the basic operating principles of the proposed reluctance machines, this paper presents a simple performance estimation of the proposed machine, the SRM, and the SynRM, which supported that the proposed machine can meet the three preferable features. Furthermore, the experiment successfully supported the operating principles of the proposed machine, suggesting the feasibility of the proposed machine for vehicle applications.

Original languageEnglish
Title of host publication2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9789075815375
Publication statusPublished - Sep 6 2021
Event23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe - Ghent, Belgium
Duration: Sep 6 2021Sep 10 2021

Publication series

Name2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe

Conference

Conference23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe
Country/TerritoryBelgium
CityGhent
Period9/6/219/10/21

Keywords

  • Electrical machine
  • Ripple minimization
  • Switched reluctance drive
  • Synchronous Reluctance Machine (SynRM)

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

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