Comparison of approaches and the software for 3D finite element modeling of harmonic electromagnetic fields

Kiselev, Dmitry S.; Persova, Marina G.; Soloveichik, Yuri G.; Koshkina, Yulia I.; Vagin, Denis V.; Simon, Evgenia I.

doi:10.1109/apeie.2016.7806463

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…The analyzer measurements are similar to the simulation results obtained with the proposed method for all tested components up to low-medium frequencies ($500 kHz). The biggest error 8.7 per cent at 1.2 GHz for case II, even in this case the error is much lower than the obtained with other known methods (Kiselev et al, 2016) applied to multi-winding components, that is close to 25 per cent. For the eight components, the FE number is reduced about 95 per cent from the real to the polygonal model, requiring a negligible computational time as compared to initial simulation using the real model without simplifications.…”

Section: Discussionmentioning

confidence: 49%

“…Several various approaches for electrical parameters extraction have been developed based on FEA optimization (Okamoto et al, 2016;Kiselev et al, 2016), original methodologies (Ben Messaoud et al, 2016) or for particular components (Aljohani et al, 2016;Phukan et al, 2016;Niyomsatian et al, 2018;Lu and Ngo, 2017) without present an actual 3 D model of the magnetic non-symmetrical component including all effects (skin effect, proximity effect, interleaving, core air gap).…”

Section: Introductionmentioning

confidence: 99%

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New electrical parameters extraction method based on simplified 3D model using finite element analysis

González-Teodoro

Romero‐Cadaval

Asensi

et al. 2019

COMPEL

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Purpose The purpose of this paper is the presentation of an electrical equivalent circuit for inductive components as well as the methodology for electrical parameter extraction by using a 3 D finite element analysis (FEA) tool. Design/methodology/approach A parameter extraction based on energies has been modified for three dimensions. Some simplifications are needed in a real model to make the 3 D finite element method (FEM) analysis operative for design engineers. Material properties for the components are modified at the pre-modeling step and a corrector factor is used at the post-modeling step to achieve the desired accuracy. Findings The current hardware computational limitations do not allow the 3 D FEA for every magnetic component, and due to the component asymmetries, the 2 D analysis are not precise enough. The application of the new methodology for three dimensions to several actual components has shown its usefulness and accuracy. Details concerning model parameters extration are presented with simulation and measurement results at different operation frequencies from 1 kHz to 1 GHz being the range of switching frequencies used by power electronic converters based on Si, SiC or GaN semiconductors. Practical implications This new model includes the high-frequency effects (skin effect, proximity effect, interleaving and core gap) and other effects can be only analyzed in 3 D analysis for non-symmetric components. The electrical parameters like resistance and inductance (self and mutual ones) are frequency-dependent; thus, the model represents the frequency behavior of windings in detail. These parameters determine the efficiency for the inductive component and operation capabilities for the power converters (as in the voltage boost factor), which define their success on the market. Originality/value The user can develop 3 D finite element method (FEM)-based analyses with geometrical simplifications, reducing the CPU time and extracting electrical parameters. The corrector factor presented in this paper allows obtaining the electrical parameters when 3D FE simulation would have developed without any geometry simplications. The contribution permits that the simulations do not need a high computational resource, and the simulation times are reduced drastically. Also, the reduced CPU time needed per simulation gives a potential tool to optimize the non-symmetric components with 3 D FEM analysis.

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Section: Discussionmentioning

confidence: 49%

Section: Introductionmentioning

confidence: 99%

New electrical parameters extraction method based on simplified 3D model using finite element analysis

González-Teodoro

Romero‐Cadaval

Asensi

et al. 2019

COMPEL

View full text Add to dashboard Cite

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“…If FEM is used to calculate the magnetic field density, the asymmetric components that need a 3D model, however due to the current computational limitations [21], [22] is a difficult task to achieve enough accuracy or it is not productive due the CPU time. The proposed methodology gives an original equation to determine the CPL for Toroidal components used in switchedmode power supplies (normally in non-saturation status) for any signal-based 3D finite element analyses (FEA) [23].…”

Section: Introductionmentioning

confidence: 99%

Per-Unit Hysteresis and Eddy Loss Method Based on 3D Finite Elements for Non-Symmetric Toroidal Magnetic

2020

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Several main methodologies are used to estimate the core power loss (CPL) in magnetic components. One group is based in the Steinmetz equation (The modified one, the generalized one and the natural equations are the principals). Another one is the separation of losses between hysteresis, eddy current and excess losses. The third group is based mathematical-empirical hysteresis models and the last one is based on the magnetization process. These approaches need a prior test or analysis to calculate the CPL. Tests are usually expensive, or the number of needed tests is excessive for the component design process. 2D analyses are not enough for some magnetic components due to their lack of symmetries. Toroidal core components are ones of the most common components in transformers and power converters. They do not have symmetries in the magnetic field distribution and only 3D models are satisfactory to take into account all the effects and phenomena. An extensive study of 3D model finite element analysis was developed to determine the main losses in magnetic components core, the hysteresis and eddy current losses. A new methodology is presented, per-unit CPL (considering only Hysteresis and Eddy Current Losses) that permits analyzing the impact of the involved factors separately. The proposed per-unit CPL allows the definition of a new equation for determining hysteresis and eddy current losses using only the geometrical and material parameters (core and coils) used to estimate the total CPL. INDEX TERMS Eddy current, Hysteresis loss, core power loss, 3D modeling, finite element analysis.

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Determination of wire resistance caused by skin effect using modified 3D finite element model

et al. 2020

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Comparison of approaches and the software for 3D finite element modeling of harmonic electromagnetic fields

Cited by 5 publications

References 5 publications

New electrical parameters extraction method based on simplified 3D model using finite element analysis

New electrical parameters extraction method based on simplified 3D model using finite element analysis

Per-Unit Hysteresis and Eddy Loss Method Based on 3D Finite Elements for Non-Symmetric Toroidal Magnetic

Determination of wire resistance caused by skin effect using modified 3D finite element model

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