Partial discharge analysis of a candidate winding used in electric aircraft propulsion

Hoole, Yovahn Y. R.

Permalink

https://hdl.handle.net/2142/116020 Copy

Description

Title

Partial discharge analysis of a candidate winding used in electric aircraft propulsion

Author(s)

Hoole, Yovahn Y. R.

Issue Date

2022-06-20

Director of Research (if dissertation) or Advisor (if thesis)

Haran, Kiruba S

Department of Study

Electrical & Computer Eng

Discipline

Electrical & Computer Engr

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

M.S.

Degree Level

Thesis

Keyword(s)

• Partial Discharge
• Electric Aircraft
• Electric Aircraft Propulsion
• Electrical Insulation System
• Motor Windings

Abstract

This focus of this thesis is twofold, the first objective is to study the partial discharge characteristics of a candidate electrical insulation system for form wound windings in a high frequency electric machine used in aircraft propulsion. To this extent, a thorough analysis via phase resolved discharge patterns, pulse sequence analysis, and trending of discharge parameters through an accelerated aging test are detailed in this thesis. To investigate the impact of low-pressure conditions on aircraft applications, discharge characteristics at pressures of 0.2 atm (cruising altitude), and up to 1 atm are also studied and detailed. The second objective is to investigate the possibility of end-of-life prediction for an electrical insulation system based on partial discharge characteristics. End-of-life prediction fulfills the need for an easily interpretable signal for insulation quality. A barrier to the successful prediction of the remaining lifetime of insulation systems is the statistical nature of the partial discharge phenomenon. This study catalogs various features of a collected partial discharge dataset and analyzes their usability towards the goal of end-of-life prediction with respect to the statistical variance found between samples of the same age.

Graduation Semester

2022-08

Type of Resource

Thesis

Copyright and License Information

Copyright 2022 Yovahn Hoole

Owning Collections