Parametric identification in potential transformer modelling

Parametric identification in potential transformer modelling

It is shown that a wideband lumped parameter equivalent circuit of a potential transformer can be determined through parametric system identification by the least squares method. Because of limitations in the measuring equipment, up to four different sets of input/output signals are necessary. Compa...

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Veröffentlicht in:IEEE transactions on power delivery 1992-01, Vol.7 (1), p.70-76
Hauptverfasser: Bak-Jenson, J., Bak-Jenson, B., Mikkelsen, S.D., Jensen, C.G.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Electrical engineering. Electrical power engineering
Electrical resistance measurement
Equivalent circuits
Exact sciences and technology
Frequency measurement
Parameter estimation
Power system modeling
Sampling methods
Signal processing
Time measurement
Transfer functions
Transformers and inductors
Voltage transformers
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Beschreibung
Zusammenfassung:It is shown that a wideband lumped parameter equivalent circuit of a potential transformer can be determined through parametric system identification by the least squares method. Because of limitations in the measuring equipment, up to four different sets of input/output signals are necessary. Compared with other tests for finding the equivalent circuit, this method is less time consuming. Results obtained on a 50 Hz (20/ square root 3) kV/(110/ square root 3) V potential transformer are presented.< >
ISSN:0885-8977
1937-4208
DOI:10.1109/61.108891