An Improved Loss-Separation Method for Transformer Core Loss Calculation and Its Experimental Verification

The separation of core loss plays an important role in the transformer loss calculation. To obtain more accurate core loss, based on the comparison and analysis on two traditional loss separation methods, an improved loss separation method was proposed for the core loss calculation of the transforme...

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Main Authors: Huiqi Li, Lin Wang, Jun Li, Junjie Zhang
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9253582/
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author Huiqi Li
Lin Wang
Jun Li
Junjie Zhang
author_facet Huiqi Li
Lin Wang
Jun Li
Junjie Zhang
author_sort Huiqi Li
collection DOAJ
description The separation of core loss plays an important role in the transformer loss calculation. To obtain more accurate core loss, based on the comparison and analysis on two traditional loss separation methods, an improved loss separation method was proposed for the core loss calculation of the transformer in a wide magnetic flux density range. Firstly, through analysis the eddy current loss was obtained by direct calculation, while the hysteresis loss was obtained by performing the quasi-static magnetization process. And the coefficient corrections for the hysteresis loss and eddy current loss calculation were conducted by using the experimental data. The result comparison between the proposed method and traditional ones were made. Secondly, by setting up the Epstein frame platform, the total loss and static hysteresis loss of 14 types of industrial silicon steel were measured. In addition, the suggestive values and the corresponding value range of the loss coefficients of 14 kinds of industrial silicon steel were given. The results obtained by the proposed method were in good agreement with the measured data in the wide magnetic flux density range, while the suggestive values and the corresponding value range of 14 kinds of industrial silicon steel can provides an effective data support for the accurate core loss calculation.
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spelling doaj.art-7b9de76c9fca4c6c85686c4ae5ae3e362022-12-21T22:23:47ZengIEEEIEEE Access2169-35362020-01-01820484720485410.1109/ACCESS.2020.30371129253582An Improved Loss-Separation Method for Transformer Core Loss Calculation and Its Experimental VerificationHuiqi Li0https://orcid.org/0000-0002-8402-5269Lin Wang1https://orcid.org/0000-0001-7559-5959Jun Li2Junjie Zhang3Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defence, North China Electric Power University, Baoding, ChinaHebei Provincial Key Laboratory of Power Transmission Equipment Security Defence, North China Electric Power University, Baoding, ChinaBaoding Jida Electrical Power Design Company Ltd., Baoding, ChinaBaoding Tianwei Baobian Electric Company Ltd., Baoding, ChinaThe separation of core loss plays an important role in the transformer loss calculation. To obtain more accurate core loss, based on the comparison and analysis on two traditional loss separation methods, an improved loss separation method was proposed for the core loss calculation of the transformer in a wide magnetic flux density range. Firstly, through analysis the eddy current loss was obtained by direct calculation, while the hysteresis loss was obtained by performing the quasi-static magnetization process. And the coefficient corrections for the hysteresis loss and eddy current loss calculation were conducted by using the experimental data. The result comparison between the proposed method and traditional ones were made. Secondly, by setting up the Epstein frame platform, the total loss and static hysteresis loss of 14 types of industrial silicon steel were measured. In addition, the suggestive values and the corresponding value range of the loss coefficients of 14 kinds of industrial silicon steel were given. The results obtained by the proposed method were in good agreement with the measured data in the wide magnetic flux density range, while the suggestive values and the corresponding value range of 14 kinds of industrial silicon steel can provides an effective data support for the accurate core loss calculation.https://ieeexplore.ieee.org/document/9253582/Epstein frame platformoriented silicon steeltransformer core loss separationhysteresiseddy current
spellingShingle Huiqi Li
Lin Wang
Jun Li
Junjie Zhang
An Improved Loss-Separation Method for Transformer Core Loss Calculation and Its Experimental Verification
IEEE Access
Epstein frame platform
oriented silicon steel
transformer core loss separation
hysteresis
eddy current
title An Improved Loss-Separation Method for Transformer Core Loss Calculation and Its Experimental Verification
title_full An Improved Loss-Separation Method for Transformer Core Loss Calculation and Its Experimental Verification
title_fullStr An Improved Loss-Separation Method for Transformer Core Loss Calculation and Its Experimental Verification
title_full_unstemmed An Improved Loss-Separation Method for Transformer Core Loss Calculation and Its Experimental Verification
title_short An Improved Loss-Separation Method for Transformer Core Loss Calculation and Its Experimental Verification
title_sort improved loss separation method for transformer core loss calculation and its experimental verification
topic Epstein frame platform
oriented silicon steel
transformer core loss separation
hysteresis
eddy current
url https://ieeexplore.ieee.org/document/9253582/
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