A Systematic Study on the Effects of Dimensional and Materials Tolerances on Permanent Magnet Synchronous Machines Based on the IEEE Std 1812

Narges Taran, Vandana Rallabandi, Dan M. Ionel, Ping Zhou, Mark Thiele, Greg Heins

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

In the process of designing and manufacturing an electrical machine, a systematic study of dimensional and material tolerances is of the utmost importance. This paper proposes a systematic method by which the effect of design specification variations on permanent magnet (PM) synchronous machine performance may be identified and quantified. The method combines design of experiments techniques, open-circuit and short-circuit physical measurements, and virtual test simulations conducted based on the recently approved IEEE Std 1812 testing guide. Three case studies, two provided by a spoke-type PM radial field machine configuration, in two designs with different electromagnetic loading, and an axial flux PM machine are discussed. It is shown that based on the output performance, out of specification tolerances for magnet remanence, steel grade, as well as dimensional variables, and stator to rotor eccentricity, may be identified under certain conditions. It is also exemplified that the ratings, magnetic loading, and configuration of the machine play critical roles and should be thoroughly considered as part of the studies.

Original languageEnglish
Article number8501598
Pages (from-to)1360-1371
Number of pages12
JournalIEEE Transactions on Industry Applications
Volume55
Issue number2
DOIs
StatePublished - Mar 1 2019

Bibliographical note

Funding Information:
The support of University of Kentucky, the L. Stanley Pigman endowment and the SPARK program, ANSYS Inc. and Regal Beloit Corp. is gratefully acknowledged.

Publisher Copyright:
© 1972-2012 IEEE.

Keywords

  • Axial flux
  • IEEE Std 1812
  • design of experiments (DOE)
  • electric machine
  • manufacturing
  • open-circuit
  • permanent magnet (PM) synchronous motor
  • sensitivity analysis
  • short-circuit
  • spoke-type
  • tests
  • tolerances

ASJC Scopus subject areas

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

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