On the design of partial discharge-free low voltage electrical machines

Vincenzo Madonna, Paolo Giangrande, Weiduo Zhao, He Zhang, Chris Gerada, Michael Galea

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

25 Citations (Scopus)

Abstract

Modern electrical machines employed in transportation applications are required to provide high performance in terms of power (and torque) density. At the same time, being these applications safety-critical, a significant level of reliability and/or fault tolerance is expected. Among all the factors which can compromise motors reliability, partial discharges inception is one of the most critical, in particular for low voltage, random wound machines. In this paper, the influence of insulation design choices on the performance of a traction electric motor are analysed. The study is based on the Paschen's law for air at sea-level pressure combined with an electrostatic finite element model of the turn-to-turn insulation subsystems, built for determining the electric field. The finite element analysis findings are experimentally validated by detecting the partial discharges inception, on custom-built prototypes.

Original languageEnglish
Title of host publication2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1837-1842
Number of pages6
ISBN (Electronic)9781538693490
DOIs
Publication statusPublished - May 2019
Event11th IEEE International Electric Machines and Drives Conference, IEMDC 2019 - San Diego, United States
Duration: 12 May 201915 May 2019

Publication series

Name2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019

Conference

Conference11th IEEE International Electric Machines and Drives Conference, IEMDC 2019
Country/TerritoryUnited States
CitySan Diego
Period12/05/1915/05/19

Keywords

  • Automotive
  • Electrical machines design
  • Organic insulation
  • Partial discharges
  • Reliability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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