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DOI: https://doi.org/10.15407/techned2017.02.035

IMPLEMENTATION FEATURES OF THE TRANSFER FUNCTION OF THE TRANSFORMER-AND-SWITCHES EXECUTIVE STRUCTURE OF THE AC VOLTAGE REGULATOR-STABILIZER

Journal Tekhnichna elektrodynamika
Publisher Institute of Electrodynamics National Academy of Science of Ukraine
ISSN 1607-7970 (print), 2218-1903 (online)
Issue No 2, 2017 (March/April)
Pages 35 – 39

 

Authors
K.O. Lypkivskyi*, A.G. Mozharovskyi**
Institute of Electrodynamics National Academy of Sciences of Ukraine,
pr. Peremohy, 56, Kyiv, 03057, Ukraine,
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* ORCID ID : http://orcid.org/0000-0002-3292-1360
** ORCID ID : http://orcid.org/0000-0001-9801-2728

 

Abstract

Devices of the converter equipment with transformer-and-switches executive structures (TSES) intended for implementation of dual types of purposeful changes in the magnitude of the input voltage U1, regulation and stabilization of the output voltage U2 at any required level. To facilitate the analysis of the processes occurring at the same time, it was introduced the definition of a zone on the U1U2 plane as "conversion field", within which there is a plurality of operating points of the converter. The aim of this work is to determine the characteristics of the formation of the conversion field and an array of transfer coefficients of the AC voltage discrete converter. It was proposed to consider the conversion field as a set of cells, in each of which the transformer-and-switches executive structure acts as a conventional two-winding transforming element with inherent voltage transmission coefficient. The problem has been solved in a general form in all ranges of the stabilization and regulation. Dependencies of the number of transfer coefficients and their values from the parameters of the conversion field and the allowable error of the desired voltage value have been determined. Examples of options for the reconfiguration of the conversion field have been presented. References 10, figures 5.

 

Key words: transformer-and-switches executive structure, tap chanching, tap switching, transfer factor, regulator, stabilizer, converting field, reconfiguration.

 

Received:    09.12.2016
Accepted:    12.12.2016
Published:   23.03.2017

 

References

1. Lypkivskyi K.O. Features of regulation of stabilized voltage level by means of converter with transformer-and-switches executive structure. Tekhnichna Elektrodynamika.  2012.  No 1.  Pp. 23–26. (Ukr)
2. Lypkivskyi K.O. Transformer-and-Switches Executive Structures of Alternating Current Voltage Converters.  Kiev: Naukova Dumka, 1983.  216 p. (Rus)
3. Khalikov V.А. Review of the status and opportunities to improve the organization of switching processes in the power transformer and the switches nodes. Tekhnichna Elektrodynamika.  2012.  No 5.  Pp. 28–37. (Ukr)
4. Bimal, K. Bose. Power Electronics – Why the Field is so Exciting. IEEE Power Electronics Society Newsletter Fourth Quarter. 2007.  Vol. 19.  No 4.  Pp. 11–20.
5. Huang M. Research on the Differential Protection Algorithm of Multi-Tap Special Transformer. Journal of Power and Energy Engineering.  2014.  Vol. 2.  No 9.  Pp. 98–105. DOI: https://doi.org/10.4236/jpee.2014.29014
6. Willems W. Development of a smart transformer to control the power exchange of a microgrid. IEEE PES ISGT Europe 2013.  2013.  Pp. 1–5.
7. Peter Hammond. Hybrid tap-changing transformer with full range of control and high resolution. Patent US 6472851 B2, G05F1/147, 29.10.2002.
8. James W. Kronberg. Digitally-controlled AC voltage stabilizer. Patent US 6417651 B1, G05F1/14, 2002.
9. Electronic Tap Switching Voltage Regulator. Available at: http://www.ustpower.com/comparing-automatic-voltage-regulation-technologies/avr-guide-electronic-tap-switching-voltage-regulator/ (accessed 07.12.2016).
10. Engineering articles. Tap chanching transformers. Available at: http://top10electrical.blogspot.com/ (accessed 07.12.2016).

 

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