On the Influence of the Stator Winding Topology on the Electromagnetic Emissions of Fractional Horsepower BLDC Motors

Felix Krall, Annette Muetze

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

Abstract

Due to the increasing number of electronic devices in the automotive sector, the electromagnetic compatibility (EMC) of auxiliary drives has become increasingly important in recent years. This paper investigates the influence of the three different winding topologies monofilar, bifilar and bifilar twisted on the EMC performance of fractional horsepower (FHP) brushless DC (BLDC) motors. The main coupling path of the motor for the radiated emissions is the parasitic coupling capacitance Cp of the stator lamination stack and the motor winding. The comparison of EMC measurements carried out in a shielded chamber show the influence of this coupling. A decreased coupling reduces the radiated emissions by 5\ \mathrm{dB}_{\mu \mathrm{V}/\mathrm{m}} over a wide frequency range. If the excitation of this coupling path is also decreased, the radiated emissions decline by almost 10\ \mathrm{dB}_{\mu \mathrm{V}/\mathrm{m}}. This allows the necessary EMC filter's size to be reduced.

Original languageEnglish
Title of host publication2020 22nd European Conference on Power Electronics and Applications, EPE 2020 ECCE Europe
ISBN (Electronic)9789075815368
DOIs
Publication statusPublished - Sep 2020
Event22nd European Conference on Power Electronics and Applications - Lyon, France (Online), Virtuell, France
Duration: 7 Sep 202011 Sep 2020
https://epe-ecce-conferences.com/epe2020/

Publication series

Name2020 22nd European Conference on Power Electronics and Applications, EPE 2020 ECCE Europe

Conference

Conference22nd European Conference on Power Electronics and Applications
Abbreviated titleEPE’20 ECCE Europe
Country/TerritoryFrance
CityVirtuell
Period7/09/2011/09/20
Internet address

Keywords

  • Automotive application
  • Brushless drive
  • EMC/EMI
  • Variable speed drive

ASJC Scopus subject areas

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

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