Analysis of the DC bias phenomenon by the harmonic balance method based on the electromagnetic coupling model

Author

Xiaoxin Zhang ; Huiqi Li ; Yang Liu ; Xiaojun Zhao ; Zhiguang Cheng

Author_Institution

State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, NCEPU, Baoding, China

fYear

2013

fDate

25-28 Aug. 2013

Firstpage

387

Lastpage

390

Abstract

The harmonic balance method is applied to study the DC bias phenomenon of the power transformer in frequency domain. The harmonic balance equation has been set up, establishing the electromagnetic coupling model. Every frequency solution of the exciting current and the magnetic flux can be calculated by updating the reluctance in iterative computation. A single-phase two-limb core model is employed to carry out the DC bias experiment. The measured results obtained from experiments are in accordance with the calculated ones, confirming the effectiveness of the proposed method.

Keywords

electromagnetic coupling; frequency-domain analysis; iterative methods; power transformers; DC bias phenomenon; electromagnetic coupling model; frequency domain; harmonic balance method; iterative computation; power transformer; single-phase two-limb core model; Coils; Current measurement; Equations; Harmonic analysis; Magnetic circuits; Mathematical model; Power system harmonics; DC bias; Harmonic balance method; electromagnetic coupling model; power transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Technology & Computational Electromagnetics (ICMTCE), 2013 IEEE International Conference on

Conference_Location

Qingdao

Type

conf

DOI

10.1109/ICMTCE.2013.6812492

Filename

6812492