Comparative Analysis of Traction Inverter Controllers for the Mission-Profile Oriented Reliability and Performance Evaluation in Electric Vehicles

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

Abstract

In this paper the individual component lifetime of an insulated-gate bipolar transistor (IGBT) traction inverter driving an Interior Permanent Magnet Synchronous Motor (IPMSM) is assessed. The performance is compared for two different control strategies during an 1800s WLTC driving cycle. The first strategy is Indirect Field Oriented Control (IFOC) with Maximum-Torque-Per-Ampere (MTPA) and Maximum-Torque-Per-Voltage (MTPV) with sinusoidal pulse width modulation (SPWM). The second control strategy is a Direct Torque Model Predictive Control (DTMPC), specifically the Finite Control Set Optimal Switching Vector (FCS-OSV) MPC. A high-fidelity electro-thermal model of the inverter is used to calculate losses and junction temperatures of IGBTs and diodes. The proprietary physics-of-failure based reliability assessment tool (RELAT) is used to evaluate individual component's reliability percentile based on the junction temperature variation during a WLTC driving cycle. The MPC-controlled traction inverter shows 25.6% less losses, 1.2–1.77% lower junction temperatures, and 21% faster reliability degradation compared to the inverter with the IFOC.
Original languageEnglish
Title of host publication2021 Sixteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)
PublisherIEEE
Pages1-5
Number of pages5
ISBN (Electronic)9781665449021
DOIs
Publication statusPublished - 23 Jun 2021
Event2021 Sixteenth International Conference on Ecological Vehicles and Renewable Energies (EVER) - Monaco, France
Duration: 5 May 20217 May 2021

Publication series

Name2021 16th International Conference on Ecological Vehicles and Renewable Energies, EVER 2021

Conference

Conference2021 Sixteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)
CountryFrance
CityMonaco
Period5/05/217/05/21

Keywords

  • IGBT
  • Performance Evaluation
  • Ageing
  • Torque
  • Model Predicitve Control
  • Inverter
  • Reliability

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