Skip to main content
SpringerLink
Log in

Highly Efficient Multilevel Frequency Converters of Metallurgical Production Facilities

  • Published:
Russian Electrical Engineering Aims and scope Submit manuscript

Abstract

A comparative analysis of traditional and multilevel low-voltage frequency converters was performed. Calculation methods were proposed that make it possible to evaluate the technical and economic indices of multilevel semiconductor devices. The attractive qualities of low-voltage multilevel frequency converters as compared with high-voltage (with rated voltage exceeding 1 kV) multilevel semiconductor devices were distinguished. In low-voltage multilevel converters, the loss in semiconductor rectifiers was reduced by about 1.5 times, the effect of overvoltage in the load was decreased, and the operating speed of the active rectifier was increased. A method of estimation of the loss in semiconductor converters with two-level standalone inverters based on mathematical models and experimental studies is proposed, which made it possible to clarify the parameters of analytical equations. It is stated that using the three-level bridge inverters (rectifiers) in active rectifiers makes it possible to shorten the durability of transient process of the system in the regeneration mode because of a reduced level of switching overvoltages. A method of choosing the optimal number of phases of semiconductor multilevel low-voltage frequency converters for metallurgical production facilities according to the criterion of maximum probability of failure-free operation was developed.

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

Similar content being viewed by others

References

  1. Rozanov, Yu.K. and Lepanov, M.G., Silovaya elektronika: Uchebnik i praktikum (Power Electronics: Theoretical and Practical Manual), Moscow: Mosk. Energ. Inst., 2017.

  2. Antipin, V.G., Timofeev, S.V., Nesterov, D.K., et al., Prokatnye stany: Spravochnik. Tom 2. Sredne-, melkosortnye i spetsial’nye stany (Rolling Mills: Handbook, Vol. 2: Middle-, Small-Grade and Special Mills), Moscow: Metallurgiya, 1992.

    Google Scholar 

  3. Mustafa, G.M., Gusev, S.I., Kuzikov, S.V., and Chernov, I.S., A combined frequency converter for soft acceleration of induction electric drives with heavy starting conditions, Russ. Electr. Eng., 2018, vol. 89, no. 4.

  4. Preobrazovateli chastoty MOMENTUM MT-2000. Katalog 2019 (Frequency Converters MOMENTUM MT-2000: Catalogue 2019), Snezhinsk, 2019.

Download references

Funding

This work was financially supported by the Ministry of Education and Science of the Russian Federation, grant 13.9662.2017/VR.

Author information

Authors and Affiliations

  1. South Ural State University National Research University, Chelyabinsk, 454080, Russia

    E. S. Chupin & M. A. Grigorev

Authors
  1. E. S. Chupin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. A. Grigorev
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to E. S. Chupin.

Additional information

Russian Text © The Author(s), 2019, published in Elektrotekhnika, 2019, No. 5, pp. 21–26.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chupin, E.S., Grigorev, M.A. Highly Efficient Multilevel Frequency Converters of Metallurgical Production Facilities. Russ. Electr. Engin. 90, 375–379 (2019). https://doi.org/10.3103/S1068371219050031

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S1068371219050031

Keywords

Search

Navigation