Design of flux-switching dc-field machines with harmonics suppression

Libing Cao, K. T. Chau, Christopher H.T. Lee, C. C. Chan, T. W. Ching

Research output: Unpublished conference presentation (presented paper, abstract, poster)Conference presentation (not published in journal/proceeding/book)Academic researchpeer-review

Abstract

This paper proposes and analyzes a design approach for flux-switching DC-field (FSDC) machines with harmonics suppression. By purposely selecting appropriate stator/rotor-pole combinations, the even harmonics of phase coils can be cancelled and hence the harmonics suppression of back electromotive force (EMF) of the phase winding. The design criteria are firstly derived from the view of slot star diagram and back-EMF vectors, based on which the mathematics conditions are established. Then, the FSDC machines are optimized by multi-objective genetic algorithm (Moga) coupled with finite-element analysis (FEA) under the fixed copper loss. Consequently, the back-EMF harmonics of the phase winding and coils of the optimized machines are analyzed by FEA. It shows that the even harmonics of back-EMF of phase coils can be cancelled and the phase winding total harmonic distortion (THD) is significantly suppressed by the proposed method.

Original languageEnglish
Publication statusPublished - Oct 2018
Externally publishedYes
Event31st International Electric Vehicle Symposium and Exhibition, EVS 2018 and International Electric Vehicle Technology Conference 2018, EVTeC 2018 - Kobe City, Japan
Duration: 30 Sept 20183 Oct 2018

Conference

Conference31st International Electric Vehicle Symposium and Exhibition, EVS 2018 and International Electric Vehicle Technology Conference 2018, EVTeC 2018
Country/TerritoryJapan
CityKobe City
Period30/09/183/10/18

Keywords

  • Flux-switching DC-field machines
  • Harmonics suppression
  • Optimization
  • Total harmonic distortion (THD)

ASJC Scopus subject areas

  • Fuel Technology
  • Automotive Engineering
  • Electrical and Electronic Engineering

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