Autors: Zarkov, Z. J., Lazarov, V. D., Stoyanov, T. M., Stoyanov, L. S.
Title: Influence of magnet dimensions on torque components and cost of synchronous machine with interior magnets
Keywords: interior magnets synchronous machine, torque, reluctance torque, magnet price

Abstract: The paper presents a study on interior permanent magnet (PM) synchronous machine (SM). The influence of PM dimensions on the electromagnetic torque and its components (torque from PM and reluctance torque) is investigated. The SM torque is calculated using an approach proposed by the authors based on FEM analysis and analytical formulae. The results show influence of the magnet width and magnet height on the torque of the machine. It is proven that the torque of the machine is affected much more by the width of the magnets than by their height. As a result from the study it is concluded that there are possibilities for significant reduction of the volume of magnets without sacrificing the machine torque. In the paper, it is also discussed the possible financial savings due to reduction of PM mass and price.

References

  1. M. Kumar, S. Revankar, “Development scheme and key technology of an electric vehicle: an overview,” Renewable and Sustainable Energy Reviews, vol. 70, Elsevier, 2017, pp. 1266-1285.
  2. S.J. Rind, Y. Ren, Y. Hu, J. Wang, and L. Jiang. Configurations and control of traction motors for electric vehicles: a review. Chinese Journal of Electrical Engineering, vol.3, No.3, pp. 1-17, December 2017.
  3. J. Smith, et al., ”Parameter extraction for behavioral model of permanent magnet synchronous machine in field weakening operation mode,” Proc. of 2015 COMSOL Conference, Grenoble, Oct. 2015.
  4. H. Mirahki and M. Moallem, “Torque calculation in interior permanent magnet synchronous machine using improved lumped parameter models,” Progress in Electromagnetics Research M, vol. 39, 2014, pp. 131–139.
  5. M. H. Alhassan, “Computation of electromechanical forces and torques in the permanent magnet synchronous motor,” 2014 IEEE International Energy Conference (ENERGYCON), 2014, pp. 14-22.
  6. Z. Zarkov, et al., “An approach for modeling the electronic converter- motor system for electric vehicles”, 2019 16th Conference on Electrical Machines, Drives and Power Systems, ELMA 2019, 6-8 June 2019, Varna, Bulgaria.
  7. E. Popov, ALMOTT Group. Utility model №2566, “Brushless electric machine with excitation from permanent magnets,” 2017, (in Bulgarian).
  8. https://www.kitco.com/strategic-metals/
  9. https://allianceorg.com/commodity-prices/magnet-and-material-costs/

Issue

XVII International conference on electrical machines, drives and power system (ELMA 2021), pp. 344 – 349, 2021, Bulgaria, ISBN 978-166543582-6

Copyright IEEE

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Вид: постер/презентация в международен форум, публикация в реферирано издание, индексирана в Scopus и Web of Science