Title :
Parametric identification in potential transformer modelling
Author :
Bak-Jenson, J. ; Bak-Jenson, B. ; Mikkelsen, S.D. ; Jensen, C.G.
Author_Institution :
Inst. of Energy Technol., Aalborg Univ., Denmark
fDate :
1/1/1992 12:00:00 AM
Abstract :
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/√3) kV/(110/√ 3) V potential transformer are presented
Keywords :
equivalent circuits; least squares approximations; lumped parameter networks; parameter estimation; potential transformers; power transformers; 11.55 kV; 50 Hz; 63.51 V; least squares method; modelling; parameter identification; potential transformer; power transformers; wideband lumped parameter equivalent circuit; Electrical resistance measurement; Equivalent circuits; Frequency measurement; Parameter estimation; Power system modeling; Sampling methods; Signal processing; Time measurement; Transfer functions; Voltage transformers;
Journal_Title :
Power Delivery, IEEE Transactions on
