Impact of Thermal Aging on Winding Insulation Loss-of-Life Fraction Using H Algorithm for Integrated permanent Magnet In-Wheel Motor

Maliheh Hashemi, Michael Stolz, Daniel Watzenig

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

Abstract

To improve the reliability of in-wheel structures based on permanent magnet synchronous motors (PMSM), thermal management is a crucial requirement. However, online thermal analysis for in-wheel motors which drives electric vehicles (EVs) specially autonomous electric vehicles (A-EVs) is a highly challenging task due to the complex thermal distribution affected by geometrical and material parameters and intricate boundary conditions. In the pursuit of avoiding winding insulation to get overheated and the motor lifetime to be shortened, real-time temperature estimation is needed. In this contribution we focus on a model-based robust temperature estimation for a PMSM on the stator and rotor parts, specifically to evaluate gradual winding insulation deterioration. The proposed temperature estimation method is based on H algorithm applied on a low-order lumped parameter thermal network (LPTN). Then, the insulation loss-of-life fraction is investigated when an over-current occurs during a short-time thermal overload. Finally, a comparison between numerical simulation results and experimental results confirms the robustness, feasibility and effectiveness of the presented model.

Original languageEnglish
Title of host publicationIAVVC 2023 - IEEE International Automated Vehicle Validation Conference, Proceedings
PublisherIEEE
ISBN (Electronic)9798350322538
DOIs
Publication statusPublished - 2023
Event2023 IEEE International Automated Vehicle Validation Conference: IAVVC 2023 - Austin, United States
Duration: 16 Oct 202318 Oct 2023

Conference

Conference2023 IEEE International Automated Vehicle Validation Conference
Abbreviated title IAVVC 2023
Country/TerritoryUnited States
CityAustin
Period16/10/2318/10/23

Keywords

  • in-wheel motors
  • loss-of-life modeling
  • lumped-parameter thermal network
  • temperature estimation
  • thermal analysis

ASJC Scopus subject areas

  • Artificial Intelligence
  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Control and Optimization
  • Modelling and Simulation
  • Instrumentation

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