Transformer Core Nonlinearities Modeled in Harmonic Domain

Author

Wiechowski, Wojciech ; Bak-Jensen, Birgitte ; Bak, Claus Leth ; Lykkegaard, Jan ; Pöller, Markus

Author_Institution

Inst. of Energy Technol., Aalborg Univ.

fYear

2005

fDate

2005

Firstpage

1

Lastpage

8

Abstract

This paper demonstrates the results of implementation and verification of an already existing algorithm that allows for calculating saturation characteristics of single-phase power transformers. The algorithm was described for the first time in 1993. Now this algorithm has been implemented using the DIgSILENT programming language (DPL) as an external script in the harmonic domain calculations of a power system analysis tool PowerFactory. The algorithm is verified by harmonic measurements on a single-phase power transformer. A theoretical analysis of the core nonlinearities phenomena in single and three-phase transformers is also presented. This analysis leads to the conclusion that the method can be applied for modelling nonlinearities of three-phase autotransformers

Keywords

autotransformers; harmonic analysis; power system harmonics; power system simulation; programming languages; transformer cores; DIgSILENT programming language; DPL; PowerFactory; harmonic domain calculations; power system analysis tool; saturation characteristics; single-phase power transformers; three-phase autotransformers; transformer core nonlinearities phenomena; Algorithm design and analysis; Computer languages; Harmonic analysis; Page description languages; Power system analysis computing; Power system harmonics; Power system measurements; Power system modeling; Power transformers; Transformer cores; Autotransformers; harmonic analysis; nonlinearities; simulation software; transformer cores;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES

Conference_Location

Dalian

Print_ISBN

0-7803-9114-4

Type

conf

DOI

10.1109/TDC.2005.1547159

Filename

1547159