Implementation of the first order reversal curve method for identification of weight function in Preisach model for ferromagnetics

Eichler, Jakub; Novák, Miroslav; Košek, Miloslav

doi:10.1109/elektro.2016.7512149

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…Therefore, the distance between response curves is relatively high. Near the saturation, the curve disorder is much higher and appears also in the start of FORC [5]. Several cuts of the Everett surface are in Fig.…”

Section: Measurement In the Time Domainmentioning

confidence: 95%

Experimental Determination of the Preisach Model for Grain Oriented Steel

2019

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The full material characteristics in the Preisach model of hysteresis is a two-dimensional weighting function. It can be determined experimentally from systematic measurement of partial hysteresis loops followed by derivation of their decreasing parts. Because of measurement errors, the derivation is not correct. Nevertheless, basic material features can be obtained either from incomplete measurement that uses the Preisach triangle respecting the measurement errors. The non-uniform grid in the Preisach model is used in order to get approximately the same steps in changes of the flux density. Simulation shows that this withdrawal of some rows and columns does not change the hysteresis loop considerably, only the steps of the flux density may be higher.

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Section: Measurement In the Time Domainmentioning

confidence: 95%

Experimental Determination of the Preisach Model for Grain Oriented Steel

2019

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“…The complete theory of the Preisach model is given in [1]. The theory necessary to understand the paper is in [5], for instance. The Preisach model consists of the small ideal magnetic dipoles having the rectangular hysteresis loop that are systematically arranged in the upper triangle part of a matrix.…”

Section: Theorymentioning

confidence: 99%

Experimental-numerical method for identification of weighting function in Preisach model for ferromagnetic materials

Eichler

Novák

Košek

2016

2016 International Conference on Applied Electronics (AE)

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The Preisach model weighting function is given by partial derivations of a measured magnetic flux density that leads to high errors. Therefore other methods of the weighing function estimation are used frequently. In order to verify the direct approach the extended experiment was made and data were numerically processed to reduce known errors. It results in model of the hysteresis loop usable in a technical research. The possible errors reduction and further improvements are discussed and recommended.

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“…Preisach Theory is a phenomenological approach based on the nature of magnetic dipoles to represent the magnetization process . To date, a large number of scientific papers and experiments have validated the feasibility and accuracy of Preisach Theory .…”

Section: Introduction To Preisach Theory and Ct Principlesmentioning

confidence: 99%

Design and simulation of a new model for air‐gapped current transformers

Dong

Mirsaeidi

2018

IEEJ Transactions Elec Engng

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Current transformers (CTs) with air gaps in their iron cores are mainly applied in power systems to prevent saturation-caused malfunctions of current-based relays. However, performing reliable power system studies necessitates accurate modeling of airgapped CTs. This paper presents a new model for air-gapped CTs based on the Preisach Theory, which has the ability to represent the role of air gaps of different lengths in the performance of a CT. The salient feature of this study in comparison with other published works is that it does not require measuring the magnetization curves of the air-gapped core, which is often difficult. In order to validate the effectiveness of the proposed method, several simulations have been performed using PSCAD/EMTDC and MATLAB software packages. Simulation results indicate that the proposed model can accurately represent the characteristics of saturation as well as remanence of air-gapped CTs.

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Implementation of the first order reversal curve method for identification of weight function in Preisach model for ferromagnetics

Cited by 6 publications

References 7 publications

Experimental Determination of the Preisach Model for Grain Oriented Steel

Experimental Determination of the Preisach Model for Grain Oriented Steel

Experimental-numerical method for identification of weighting function in Preisach model for ferromagnetic materials

Design and simulation of a new model for air‐gapped current transformers

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