Methods of Identifying Higher Harmonics against the Dominant Harmonic Noise for Protection against Single-Phase-To-Ground Faults

Methods of identification of higher harmonics against the dominant harmonic noise at the network frequency changing over a wide range are considered. Recommendations on selecting the parameters for adaptive structural models for use in single-phase-to-ground fault protection are formulated. The digi...

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Bibliographic Details
Published inPower technology and engineering Vol. 55; no. 5; pp. 763 - 769
Main Authors Soldatov, A. V., Kudryashova, M. N., Antonov, V. I., Ivanov, N. G., Ivanov, M. O.
Format Journal Article
LanguageEnglish
Published New York Springer US 2022
Springer Nature B.V
Subjects
Electrical Machines and Networks
Energy
Energy Systems
Fault detection
Foundations
Geoengineering
Harmonic noise
Higher harmonics
Hydraulics
Identification methods
Power Electronics
Renewable and Green Energy
Structural models
single-phase-to-ground fault (SPGF)
digital protection
digital signal processing
adaptive structural analysis of signals
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Summary:Methods of identification of higher harmonics against the dominant harmonic noise at the network frequency changing over a wide range are considered. Recommendations on selecting the parameters for adaptive structural models for use in single-phase-to-ground fault protection are formulated. The digital current signal of the Kazan CHP-2 is used as an example to demonstrate the performance of the methods for assessing the levels of higher harmonics against the dominant fundamental harmonic when the network frequency deviates from the rating.
ISSN:1570-145X
1570-1468
DOI:10.1007/s10749-022-01429-0