Fast Hybrid Approach for Calculation of Losses in Outer Packages of Transformer Core Due to Perpendicular Stray Flux

Jurković, Zvonimir; Jurišić, Bruno; Župan, Tomislav

doi:10.1109/tmag.2021.3072027

Cited by 10 publications

(7 citation statements)

References 8 publications

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“…Several different approaches have been introduced to model the behaviors of planar transformers. For electromagnetic analysis, FEA models [11,[39][40][41][42][43][44][45][46][47][48] of the device provide accurate results compared to experiments [39,47] and reveal the detailed distributions of magnetic fields produced by the transformer. Another use of FEA is to obtain the parameters that are used in circuit models introduced in the previous section.…”

Section: Finite Element Analysismentioning

confidence: 99%

“…When the behavior of the transformer with a core is of interest, the core can be included in the FEA. The core can be modeled as homogenous and the effects of lamination can be included by setting an anisotropic permeability [48]. Furthermore, the authors showed that any clamping can be neglected in the modeling without major decreases in accuracy.…”

Section: Finite Element Analysismentioning

confidence: 99%

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A Comprehensive Review on Planar Magnetics and the Structures to Reduce the Parasitic Elements and Improve Efficiency

2023

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Due to the need for highly efficient and compact power electronic converters to operate at higher frequencies, traditional wire-wound magnetics are not suitable. This paper provides a comprehensive review of planar magnetic technologies, discussing their advantages as well as associated disadvantages. An extensive review of the research literature is presented with the aim of suggesting models for planar magnetics. Several strategies are proposed to overcome the limitations of planar magnetics, including winding conduction loss, leakage inductance, and winding capacitance. The goal of this study is to provide engineers and researchers with a clear roadmap for designing planar magnetic devices.

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Section: Finite Element Analysismentioning

confidence: 99%

Section: Finite Element Analysismentioning

confidence: 99%

A Comprehensive Review on Planar Magnetics and the Structures to Reduce the Parasitic Elements and Improve Efficiency

2023

View full text Add to dashboard Cite

show abstract

“…Several different approaches have been introduced to model the behaviour of planar transformers. For electromagnetic analysis, FEA models [16], [45]- [54] of the device provide accurate results compared to experiments [45], [53] and reveal the detailed distribution of magnetic fields produced by the transformer. Another use of FEA is to obtain the parameters that are used in circuit models introduced in the previous section.…”

Section: Finite Element Analysismentioning

confidence: 99%

“…When the behaviour of the transformer with a core is of interest, the core can be included in the FEA. The core can be modeled as homogenous and the effects of lamination can be included by setting an anisotropic permeability [54]. Furthermore, the authors showed that any clamping can be neglected in the modeling without major decreases in accuracy.…”

Section: Finite Element Analysismentioning

confidence: 99%

A Comprehensive Review on Planar Magnetics and the Structures to Reduce the Parasitic Elements and Improve Efficiency

Kolahian¹,

Grimm²,

Baghdadi³

2022

Preprint

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<p>Due to the necessity for highly efficient and compact power electronic converters to operate at higher frequencies, traditional wire-wound magnetics are not suitable. A comprehensive review of planar magnetic technologies is provided in this paper, which discusses the advantages as well as the disadvantages that can be associated with them. An extensive review of research literature is presented with the purpose of suggesting models for planar magnetics. Several strategies are presented to overcome the shortcomings of planar magnetics, such as winding conduction loss, leakage inductance, and winding capacitance. The purpose of this study is to provide engineers and researchers with a clear roadmap to designing planar magnetic devices. </p>

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“…In [15], a hybrid approach of different two-dimensional (2D) models was presented by linear modeling of core materials to calculate stray losses in the outer packages of the core. For this purpose, the magnetic field distribution on the outer package surface was initially calculated using Rabins' method [16] and 2D FEM.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Transformer No-Load Loss Using Finite Element Method Validated by Experimental Tests

Hashemi,

Taheri,

Jozi

2024

Preprint

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Transformers are one of the most critical components of electricity networks, with no-load loss as an essential technical characteristic, which plays a major role in its performance indicators. Transformer no-load loss must be determined precisely before being manufactured. They allow the development of computer programs and the faster and more accurate solution of electromagnetic problems with complex structures and boundary conditions without requiring prototyping. The Finite Element Method (FEM) is among the most popular and robust numerical methods used to solve electromagnetic field problems. This paper aimed to evaluate no-load loss in 1000 and 1600 kVA transformers while considering nonlinear magnetic characteristics by FEM and Ansys Maxwell software. Core magnetic characteristics were obtained directly from experimental tests. The results were verified by the no-load loss test in the studied transformers in a high-voltage laboratory. A comparison between simulation results with high-voltage laboratory results indicated that the simulation error in calculating no-load loss in 1000 and 1600 kVA transformers was less than 1%.

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Fast Hybrid Approach for Calculation of Losses in Outer Packages of Transformer Core Due to Perpendicular Stray Flux

Cited by 10 publications

References 8 publications

A Comprehensive Review on Planar Magnetics and the Structures to Reduce the Parasitic Elements and Improve Efficiency

A Comprehensive Review on Planar Magnetics and the Structures to Reduce the Parasitic Elements and Improve Efficiency

A Comprehensive Review on Planar Magnetics and the Structures to Reduce the Parasitic Elements and Improve Efficiency

Analysis of Transformer No-Load Loss Using Finite Element Method Validated by Experimental Tests

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