NDLI: Macroscopic broadband loss characteristics of power transformer winding extracted by Vector Fitting Method

Content Provider	IEEE Xplore Digital Library
Author	Yiming Zheng Zanji Wang
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. Eng., Tsinghua Univ., Beijing, China (Yiming Zheng; Zanji Wang)
Abstract	In order to perfect the simulation of fast and very fast transient in power transformer and describe the impact of the broadband losses in power transformers accurately, this paper carried out the research of broadband losses characteristics in power transformer windings. Network analyzer Agilent 4395A was selected to measure the voltage transfer functions of testing transformer. Based on the measured curves, a targeted initial pole selecting method was proposed and Vector Fitting Method (VFM) was adopted to extract poles from measured transfer functions. The fitting formula of damping losses was determined by theoretical analysis of transformer circuit model. It was proved that the relationship of attenuation factor versus angle frequency extracted by VFM is quite accordant to the theoretical one deduced from circuit model.
Starting Page	2956
Ending Page	2959
File Size	430475
Page Count	4
File Format	PDF
ISBN	9781467357609
ISSN	02714302
e-ISBN	9781467357623
DOI	10.1109/ISCAS.2013.6572499
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transfer functions Power transformer insulation Voltage measurement Windings Transient analysis Mathematical model
Content Type	Text
Resource Type	Article

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