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DOI: https://doi.org/10.15407/techned2018.06.026

METHOD OF DETERMINATION OF THREE-PHASE VOLTAGE ASYMMETRY OF FUNDAMENTAL FREQUENCY AND ULTRAHARMONICS

Journal Tekhnichna elektrodynamika
Publisher Institute of Electrodynamics National Academy of Science of Ukraine
ISSN 1607-7970 (print), 2218-1903 (online)
Issue No 6, 2018 (November/December)
Pages 26 – 29

 

Author
D.K. Makov*
National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute»,
pr. Peremohy, 37, Kyiv, 03056, Ukraine,
e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
* ORCID ID : http://orcid.org/0000-0003-2760-5504

 

Abstract

The new method of digital determination of symmetric phase-sequence system of three-phase electric voltages is presented. It uses the next operations: tuning multiple three frequency of measuring of instantaneous values to fundamental frequency of network voltage; analog-digital transformation of instantaneous values of three networks voltages and memorized it; selection of codes that contain the sought after symmetric phase-sequence; selection of codes of voltage of fundamental frequency. A method differs in simplicity and exactness. References 10, figures 3.

 

Key words: indexes of quality of electric power; negative phase-sequence system of voltages, positive phase-sequence system of voltages, coefficient of asymmetry.

 

Received:    06.03.2018
Accepted:    20.03.2018
Published:   23.10.2018

 

References

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