Partial Discharge Investigation of Electric Machine Winding due to Thermo-Mechanical Stresses for Electric Aircraft Propulsion

Anjana J. Samarakoon, Thomas Tallerico, Brian Wolhaupter, Thanatheepan Balachandran, Kiruba Haran

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The power density requirements and mission profile of electric aircraft propulsion motors result in significant stress on the motor winding's insulation. Traditional motor winding insulation design methods do not account for the thermomechanical stresses placed on motor windings in electric aircraft propulsion motor applications. This paper presents the results of initial experiments that aim to develop models and methodologies for designing high-reliability aircraft propulsion motors accounting for mechanical stress on the insulation. Twenty motorrette samples were manufactured and aged with thermal cycles. Partial discharge inception voltage (PDIV) was recorded as the samples were aged. Data is reported for PDIV as a function of thermal profile and the number of cycles experienced by the insulation.

Original languageEnglish (US)
Title of host publication2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350398991
DOIs
StatePublished - 2023
Externally publishedYes
Event2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023 - San Francisco, United States
Duration: May 15 2023May 18 2023

Publication series

Name2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023

Conference

Conference2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023
Country/TerritoryUnited States
CitySan Francisco
Period5/15/235/18/23

Keywords

  • insulation
  • partial discharge
  • thermomechanical aging

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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