Skip to main content
SpringerLink
Log in

Controlling the Influence of an Asymmetric Air Gap in a Synchronous Electrical Machine on the Unidirectional Attractive Force

  • Published:
Russian Engineering Research Aims and scope

Abstract

Asymmetry of the air gap in electrical machines impairs the output characteristics of both motors and generators. This asymmetry affects the magnetic induction at the poles and hence the pulsations of the electromotive force, current, and torque. The unidirectional attractive force of the rotor due to the asymmetry results in premature bearing failure and loss of the machine’s reliability. The causes and consequences of the rotor’s unidirectional attractive force are investigated, and analytical formulas are given for the asymmetry of the field and the magnetic attractive force.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.

REFERENCES

  1. Tamm, I.E., Osnovy teorii elektrichestva: Uchebnoe posobie dlya vuzov (Fundamentals of Electricity Theory: Manual for Higher Education Institutions), Moscow: Nauka, 1989.

  2. Makarichev, Yu.A. and Starikov, A.V., Teoreticheskie osnovy rascheta i proektirovaniya radial’nykh elektromagnitnykh podshipnikov (Theoretical Basis of Calculation and Design of Radial Electromagnetic Bearings), Moscow: Energoatomizdat, 2009.

  3. Makarichev, Yu.A. and Starikov, A.V., Calculation of electromagnetic forces in radial magnetic bearings with a distributed tooth-and-groove stator structure, Sbornik dokladov Vserossiiskogo nauchno-tekhnicheskogo seminara “Problemy transportirovki gaza” (Proc. All-Russ. Sci.–Tech. Seminar “Problems of Gas Transportation”), Togliatti: GAZPROM, 1999, pp. 78–85.

  4. Makarichev, Yu.A., Anufriev, A.S., Ovsyannikov, V.N., and Zubkov, Yu.V., Optimization of energetic parameters of the synchronous generator of low power, Vestn. Transp. Povolzh’ya, 2018, no. 3 (69), pp. 13–19.

Download references

Funding

Financial support was provided by the Russian Ministry of Science and Higher Education (grant FSSE-2023-0003) as part of state funding for Samara State Technical University.

Author information

Authors and Affiliations

  1. Samara State Technical University, Samara, Russia

    Yu. A. Makarichev, V. N. Kozlovskii, A. S. Saksonov & Ya. A. Rattsev

Authors
  1. Yu. A. Makarichev
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. N. Kozlovskii
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. S. Saksonov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Ya. A. Rattsev
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding authors

Correspondence to Yu. A. Makarichev, V. N. Kozlovskii, A. S. Saksonov or Ya. A. Rattsev.

Ethics declarations

The authors declare that they have no conflicts of interest.

Additional information

Translated by B. Gilbert

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Makarichev, Y.A., Kozlovskii, V.N., Saksonov, A.S. et al. Controlling the Influence of an Asymmetric Air Gap in a Synchronous Electrical Machine on the Unidirectional Attractive Force. Russ. Engin. Res. 43, 1003–1006 (2023). https://doi.org/10.3103/S1068798X23080166

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S1068798X23080166

Keywords:

Search

Navigation