Line harmonic current effects study of a 33 kW, 3-Phase 60 Hz, 12-pulse transformer using "Double-2D" FEA model

This paper presents an analysis of the skin and proximity effects produced by line frequency harmonic currents in a 33 kW 12-pulse rectifier transformer using its "Double-2D" FEA model. The model is first validated with experimental data obtained from a series of standard impedance voltage...

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Bibliographic Details
Published in2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) pp. 1 - 6
Main Author Kamath, Girish R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2014
Subjects
12-puhe transformer
2D FEA
Data models
equivalent impedance technique
Harmonic analysis
Inductance
Integrated circuit modeling
line harmonic effects
Resistance
short circuit test
skin and proximity effects
Three-dimensional displays
winding loss
Windings
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Summary:This paper presents an analysis of the skin and proximity effects produced by line frequency harmonic currents in a 33 kW 12-pulse rectifier transformer using its "Double-2D" FEA model. The model is first validated with experimental data obtained from a series of standard impedance voltage tests with a proof-of-concept transformer prototype. Good agreement is observed between model results and experimental data. The model is then used to study the 12-pulse harmonic current conditions and represent the associated winding losses as equivalent resistances. It is seen that harmonic current losses account for as much as 8-11% of the secondary winding and 4-6% of the total winding power loss, indicating their significance in this application.
ISBN:9781479963720
1479963720
DOI:10.1109/PEDES.2014.7042084