An Investigation into the Effect of PM Arrangements on PMa-SynRM Performance

Thanh Anh Huynh, Min Fu Hsieh, Kai Jung Shih, Hsiu Fu Kuo

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The paper aims to provide a guideline for rotor design of permanent magnet (PM) assisted synchronous reluctance machine (PMa-SynRM). Unlike interior PM machines, the PMa-SynRM is essentially an SynRM with dominant reluctance torque. The PMa-SynRM is often designed by directly embedding magnets into an SynRM rotor to improve the performance. However, how the PMs can be arranged in the rotor to enhance motor performance has not been fully discussed. This paper investigates the influence of several key factors concerning the PM arrangements, including number of PM layers, inserted positions, and PM sizes. The torque, flux linkages, power factor, and motor performance are comprehensively evaluated. Based on the analysis, a brief guideline is suggested for PMa-SynRM rotor design. Finite element analysis is used for evaluation and experiments are conducted to validate the analysis.

Original languageEnglish
Article number8403256
Pages (from-to)5856-5868
Number of pages13
JournalIEEE Transactions on Industry Applications
Issue number6
Publication statusPublished - 2018 Nov 1

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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