INCREASING THE EFFICIENCY OF USING AN AUTOTRANSFORMER WITH A CORE OF MAGNETIC CIRCUIT AS A PART OF THE TRANSFORMER-AND-SWITCHES EXECUTIVE STRUCTURE OF AN AC VOLTAGE STABILIZER
Article_7 PDF (Українська)

Keywords

transformer-and-switches executive structure
discrete smart transformer
AC voltage converter
partitioned winding
variation of current density
thermal processes

How to Cite

Липківський, К. ., and А. . Можаровський. “INCREASING THE EFFICIENCY OF USING AN AUTOTRANSFORMER WITH A CORE OF MAGNETIC CIRCUIT AS A PART OF THE TRANSFORMER-AND-SWITCHES EXECUTIVE STRUCTURE OF AN AC VOLTAGE STABILIZER”. Proceedings of the Institute of Electrodynamics of the National Academy of Sciences of Ukraine, no. 55, Mar. 2020, p. 046, doi:10.15407/publishing2020.55.046.

Abstract

The autotransformer (AT) of the transformer-and-switches executive structure (TSES) of an AC voltage stabilizer largely determines the overral dimensions of the converter. One of the methods to increase the efficiency of using the installed power of the AT is the targeted redistribution of losses in the elements of the AT, which can reduce the unevenness of their heating, increase the current density in its windings and, as a result, increase the load current and its allowable power. The paper traces the features of this procedure and its consequences for a TSES with an autotransformer which has a core magnetic circuit, the possible choice of which is one of a number of manifestations of the multivariance of the construction of a transformer-and-switches executive structure. References 12, figures 2, table.

https://doi.org/10.15407/publishing2020.55.046
Article_7 PDF (Українська)

References

Lypkivskyi K.O. Transformer-and-Switches Executive Structures of Alternating Current Voltage Con-verters. Kiev: Naukova Dumka, 1983. 216 p. (Rus)

Willems W., Vandoorn T.L., De Kooning, J. D., Vandevelde L., Development of a smart transformer to control the power exchange of a microgrid. 4th International Conf. Innovative Smart Grid Technologies Conference Europe. IEEE, 69 Oct. 2013, At Lyngby, Denmark. Pp. 1–5. DOI: http://dx.doi.org/10.1109/ISGTEurope.2013.6695300

Gehm A. A., Quevedo, J. D. O., Mallmann E. A., Fricke L. A., Martins M. L. D. S. & Beltrame R. C. (2015, November). Development of a supervisory system for an intelligent transformer. In Power Electronics Conference and 1st Southern Power Electronics Conference., 2015 IEEE 13th Brazilian. Pp. 1-6. IEEE DOI: http://dx.doi.org/10.1109/COBEP.2015.7420242

Huang M., Dong L., Zhang J., Wang J., Hao Z. Research on the Differential Protection Algorithm of Mul-ti-Tap Special Transformer. Journal of Power and Energy Engineering. 2014. Vol. 2. No 09. Pp. 98–105. DOI:http://dx.doi.org/10.4236/jpee.2014.29014

Bimal, K Bose. Power Electronics – Why the Field is so Exciting. IEEE Power Electronics Society News-letter Fourth Quarter. 2007. V. 19. No 4. Pp. 11–20.

Strzelecki R., Matelski W., Małkowski R., Tomasov V., Wolski L. & Krahel A., Distribution Transformer with Multi-Zone Voltage Regulation for Smart Grid System Application, 2019 IEEE 6th International Conference on Energy Smart Systems. IEEE, 1719 April 2019, Kyiv, Ukraine. Pp. 132–137. DOI: http://dx.doi.org/10.1109/ESS.2019.8764193

Lypkivskyi K.O., Mozharovskyi A.G. Determination of the influence of changes in the limits of the input voltage range on the power of a transformer element of a voltage stabilizer with a transformer-and-switches executive structure. Tehnichna Electrodynamika. 2019. No 3. Pp. 46–54. (Ukr) DOI: https://doi.org/10.15407/techned2019.03.046

Lypkivskyi K.O., Mozharovskyi A.G. Influence of distribution of energy losses in the elements of the autotransformer of the transformer-and-switches executive structure of the voltage stabilizer on the efficiency of using its installed power. Pratsi Instytutu Elektrodynamiky Natsionalnoi Akademii Nauk Ukrainy. Kyiv. 2019. No 53. Pp. 60-64. (Ukr)

Lypkivskyi K.O., Mozharovskyi A.G. Simulation of the transformative elements with sectioning of the windings as part of AC voltage source converters. Tehnichna Electrodynamika. 2016. No 3. Pp. 39–44. (Ukr) DOI: https://doi.org/10.15407/techned2016.03.039

Belopolsckyi I.I., Karetnikova E.I., Pikalova L.G. Calculation of low-power transformers and reactors. Мoskva: Energiya, 1973. 400 p. (Rus)

GOST 27427.1-83 Rolled Electrical Steel. (Rus) (accessed 15.08.2019).

COMSOL Multiphysics – http://www.comsol.com. (accessed 15.08.2019).

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Copyright (c) 2020 K.O. Lypkivskyi, A.G. Mozharovskyi

Downloads

Download data is not yet available.