Estimation of Permanent Magnet Demagnetization Rate of PMSMs for Brakes Based on the Speed Response under q-axis Step Current Excitation

Kangwon Kim, Sang Bin Lee

Research output: Contribution to journalArticlepeer-review

Abstract

With the increase of the use of permanent magnet synchronous motors, many diagnostic methods to estimate the demagnetization rate of permanent magnets have been studied. This paper is proposing an accurate method to diagnose demagnetization rate based on speed response under the q-axis current excitation. Experimental results show that this diagnostic method can detect demagnetization rate with minimal error.

Original languageEnglish
Pages (from-to)881-888
Number of pages8
JournalTransactions of the Korean Society of Automotive Engineers
Volume30
Issue number11
DOIs
Publication statusPublished - 2022

Keywords

  • Demagnetization
  • Fault diagnosis
  • Integrated dynamic brake
  • PMSM
  • Speed response

ASJC Scopus subject areas

  • Automotive Engineering

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