Measurement and calculation of 3-column 15-winding autotransformer

• Autorzy: Mazur D. , Gołębiowski M.
• Języki publikacji: EN

Abstrakty

EN

The 15-winding and 3-column autotransformer supplying an 18-pulse rectifier circuit was developed. Presented methods can be used also for the autotransformers of other topologies supplying different kinds of converters. Presented methods make it possible to exactly calculate main and leakage inductances of the multi-winding autotransformer. The presented analysis of the eigenvalues and eigenvectors of the inductance matrix makes it possible to identify the influence nature of individual modes on the inductance matrix, and to compare the calculation results obtained using the presented methods. Frequency dependence of autotransformer parameters was shown. Also modes of the impedance matrix of the multi-winding autotransformer was investigated, this made it possible to identify the influence nature of individual modes on the inductance matrix. Using presented methods one can exactly calculate main and leakage inductances of the autotransformer. Thanks to this, one can design in optimal way autotransformers for supplying, for example, rectifier circuits, THD coefficients. The results of the measurements and simulations were also shortly presented at the end of the article.

Słowa kluczowe

EN

autotransformer; leakage inductance; eddy current losses; proximity effect

PL

autotransformator; indukcyjność rozproszenia; straty wiroprądowe; efekt zbliżenia

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2011
• Tom: Vol. 60, nr 3
• Strony: 223--230
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Mazur D.

autor

Gołębiowski M.

• Faculty of Electrical and Computer Engineering, Rzeszow University of Technology, Rzeszów,

Bibliografia

• [1] Gołębiowski L., Gołębiowski M., Mazur D., Noga M., Modelowanie macierzy indukcyjności transformatorów wielouzwojeniowych, trójkolumnowych w funkcji częstotliwości. XVIII Seminarium Technicznego, KOMEL, Katowice (2009).
• [2] Dhomane G.A., Suryawanshi M.H. Mitigation of harmonics in three-phase ac system using current injection technique for ac-to-dc converter. Electric Power Systems Research 79: 1374-1383 (2009).
• [3] Choi S., Won C.-Y., Kim G.-S. A New Three-Phase Harmonic-Free Rectification Scheme Based on Zero-Sequence Current Injection. IEEE Transactions on Industry Applications 41(2): 627-633 (2005).
• [4] Villablanca Miguel E., Felipe A. Cruzat et al., A buck-type low-power rectifier with high-quality waveforms. Electric Power Systems Research 78: 1899-1905 (2008).
• [5] Zakrzewski K. Overloss coefficient for dynamo sheet during axial magnetization with nonsinusoidal flux. Archives of Electrical Engineering XLVI(3): 355-365 (1997).
• [6] Nan X., Sullivan C.R. An equivalent complex permeability model for Litz-Wire windings. IEEE Transactions on Industry Applications 45(2): 854-860 (2009).