Shape design of IPMSM for the reliability improvement of traction motors

Ki Doek Lee, Ju Lee

Research output: Contribution to journalArticle

Abstract

IPMSM for traction motor has high power density and wide operating range. But high power density causes internal temperature rise and it makes big armature reaction which causes irreversible demagnetization. And with wide operating range, rotor rotating fast gets stress from centrifugal force. For this reason, traction motor is designed to considerate stress of rotor and irreversible demagnetization for reliability. This paper explains shape design method of 120kW IPMSM accounting improvement of reliability. Finally, the validity of the analysis and the performance evaluation were verified through testing of the final model.

Original languageEnglish
Pages (from-to)816-822
Number of pages7
JournalTransactions of the Korean Institute of Electrical Engineers
Volume64
Issue number5
DOIs
StatePublished - 2015 May 1

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Traction motors
Demagnetization
Rotors
Testing
Temperature

Keywords

  • IPMSM
  • Irreversible demagnetization
  • Stress
  • Traction motor

Cite this

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Shape design of IPMSM for the reliability improvement of traction motors. / Lee, Ki Doek; Lee, Ju.

In: Transactions of the Korean Institute of Electrical Engineers, Vol. 64, No. 5, 01.05.2015, p. 816-822.

Research output: Contribution to journalArticle

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N2 - IPMSM for traction motor has high power density and wide operating range. But high power density causes internal temperature rise and it makes big armature reaction which causes irreversible demagnetization. And with wide operating range, rotor rotating fast gets stress from centrifugal force. For this reason, traction motor is designed to considerate stress of rotor and irreversible demagnetization for reliability. This paper explains shape design method of 120kW IPMSM accounting improvement of reliability. Finally, the validity of the analysis and the performance evaluation were verified through testing of the final model.

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