Estimation of radiation patterns from the stator winding of AC motors using array model

Hyeokjun Jo, Ki Jin Han

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

3 Scopus citations

Abstract

To predict the radiated emission (RE) from AC motors in driver systems under the CISPR 25 standard, this paper proposes a method to estimate the radiation pattern of the stator winding by using antenna array theory. The availability of applying the proposed method is ensured by identifying the radiation region boundaries of the winding structure of a reference motor. The array model of the stator winding can be constructed by magnetic vector potentials from the circular array of axial and end-winding current elements. The calculated patterns, which are excited by the balanced three-phase harmonics at the resonance frequency, show that the radiation becomes significant when the harmonic number is not a multiple of three. Also, we can find that the radiation from the end-winding currents is dominant. Since the estimated radiation patterns are fairly correlated with 3D full-wave simulation results, the proposed method is expected to be used for the prediction of the RE from any stator winding configuration.

Original languageEnglish
Title of host publication2016 IEEE International Symposium on Electromagnetic Compatibility, EMC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages868-873
Number of pages6
ISBN (Electronic)9781509014415
DOIs
StatePublished - 19 Sep 2016
Event2016 IEEE International Symposium on Electromagnetic Compatibility, EMC 2016 - Ottawa, Canada
Duration: 25 Jul 201629 Jul 2016

Publication series

NameIEEE International Symposium on Electromagnetic Compatibility
Volume2016-September
ISSN (Print)1077-4076
ISSN (Electronic)2158-1118

Conference

Conference2016 IEEE International Symposium on Electromagnetic Compatibility, EMC 2016
Country/TerritoryCanada
CityOttawa
Period25/07/1629/07/16

Keywords

  • AC motor
  • antenna array theory
  • radiated emission

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