Application of calorimetric method for loss measurement of a SynRM drive system

Lassi Aarniovuori, Jere Kolehmainen, Antti Kosonen, Markku Niemela, Huifeng Chen, Wenping Cao, Juha Pyrhonen

Research output: Contribution to journalArticlepeer-review


Synchronous reluctance motors (SynRMs) are gaining in popularity in industrial drives due to their permanent magnet-free, competitive performance, and robust features. This paper studies the power losses in a 90-kW converter-fed SynRM drive by a calorimetric method in comparison of the traditional input-output method. After the converter and the motor were measured simultaneously in separate chambers, the converter was installed inside the large-size chamber next to the motor and the total drive system losses were obtained using one chamber. The uncertainty of both measurement methods is analyzed and discussed.

Original languageEnglish
Pages (from-to)2005-2015
Number of pages11
JournalIEEE Transactions on Industrial Electronics
Issue number4
Early online date10 Nov 2015
Publication statusPublished - Apr 2016

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  • calorimeter
  • converter
  • efficiency
  • electric drive
  • induction motor
  • measurement
  • synchronous reluctance motors power loss
  • temperature
  • uncertainty
  • variable speed drive
  • voltage-source converter


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