Design of Low-Torque-Ripple Synchronous Reluctance Motor with External Rotor

L. Lavrinovicha 1 , J. Dirba 1  and R. Dobriyan 1
  • 1 Riga Technical University, 12/1 Azenes Str., Riga, LV-1048, Latvia

Abstract

The paper presents new designs for synchronous reluctance motors that have external rotor (segment-shaped rotor, rotor with additional non-magnetic space to the quadrature axis of the rotor, and rotor with several flux barriers). Impact of the external rotor configuration on the electromagnetic torque and torque ripple is analysed. Electromagnetic torque ripple factor is calculated for each studied motor using the results of magnetic field numerical calculations.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • 1. Levins, N., Pugachev, V., Dirba, J., & Lavrinovicha, L. (2013). High-reliability brushless synchronous motors for hand tools and household appliances. Latvian Journal of Physics and Technical Sciences, 50(3), 3–11. DOI:10.2478/lpts-2013-0015

  • 2. Pugachevs, V., Dirba, J., Kukjane (Lavrinovicha) L., Levins, N., & Orlova, S. (2012). Patent No. LV 14418 B. Riga: Patent Office of the Republic of Latvia (in Latvian).

  • 3. Levins, N., Pugachevs, V., Dirba, J., Lavrinovicha, L., & Brakanskis, U. (2012). Patent No. LV 14627 B. Riga: Patent Office of the Republic of Latvia (in Latvian).

  • 4. Lavrinovicha, L., Brakanskis, U., & Dirba, J. (2013). Synchronous reluctance motor without rotor ferromagnetic yoke. In IEEE Eurocon 2013: IEEE Region 8 EuroCon 2013 Conference, 2013, (pp. 1020–1024). Croatia, Zagreb. ISBN 9781467322317.

  • 5. Bomela, X.B., & Kamper, M.J. (2002). Effect of stator chording and rotor skewing on performance of reluctance synchronous machine. IEEE Transactions on Industry Applications, 38(1), 91–100.

  • 6. Dirba, J., Lavrinovicha, L., & Dobriyan, R. (2015). Prospects of synchronous reluctance motors usage in low power electrical devices. Latvian Journal of Physics and Technical Sciences, 52(2), 40–48. DOI: 10.1515/lpts-2015-0010

  • 7. Dirba, J., Lavrinovicha, L., & Dobriyan, R. (2016). Study of the synchronous reluctance motor design. Latvian Journal of Physics and Technical Sciences, 53(4), 22–29. DOI: 10.1515/lpts-2016-0025

  • 8. Matyska, P. (2014). Advantages of synchronous reluctance motors. Transactions on Electrical Engineering, 3(2), 44–47.

  • 9. Lavrinovicha, L., & Dirba, J. (2015). Brushless Synchronous Motors with External Rotor. Riga: RTU Press (in Latvian).

  • 10. Bianchi, N. (2005). Electrical Machine Analysis Using Finite Elements. USA: CRC Press, Taylor & Francis.

OPEN ACCESS

Journal + Issues

Search