Nonlinear Saturation Modeling of Magnetic Components With an RM-Type Core

Salas, Rosa Ana; Pleite, J.; Olías, E.; Barrado, A.

doi:10.1109/tmag.2008.921952

Cited by 20 publications

(8 citation statements)

References 2 publications

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“…Nevertheless, despite these publications there are not enough studies that calculate parameters to be used in circuit simulators, such as inductances in all working regions of the ferrite (linear, intermediate and saturation), geometries and number of turns. In this context, our previous publications have focused on 2D Finite Element Analysis procedures for RM and POT ferrite cores [ 13 , 14 ]. In addition, in the case of the RM core, we have shown an application of our procedures in a commercial circuit simulator [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Simple Procedure to Compute the Inductance of a Toroidal Ferrite Core from the Linear to the Saturation Regions

Salas

Pleite

2013

Materials

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We propose a specific procedure to compute the inductance of a toroidal ferrite core as a function of the excitation current. The study includes the linear, intermediate and saturation regions. The procedure combines the use of Finite Element Analysis in 2D and experimental measurements. Through the two dimensional (2D) procedure we are able to achieve convergence, a reduction of computational cost and equivalent results to those computed by three dimensional (3D) simulations. The validation is carried out by comparing 2D, 3D and experimental results.

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Section: Introductionmentioning

confidence: 99%

Simple Procedure to Compute the Inductance of a Toroidal Ferrite Core from the Linear to the Saturation Regions

Salas

Pleite

2013

Materials

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“…To obtain the values of the magnetic flux we have followed here the same experimental setup used in [10]- [12]. With the core initially demagnetized we made flux and current measurements using two coils of 60 turns each on the FERROXCUBE TN/23 /1417 ring core [13].…”

Section: Resultsmentioning

confidence: 99%

“…In contrast with previous studies we combine two separate procedures of magnetic and electrical modeling (see our previous papers along this line of research [10]- [12]). Our study has the advantage of being applicable to a broad variety of conditions, i.e.…”

Section: Introductionmentioning

confidence: 99%

Accurate modeling of voltage and current waveforms of nonlinear inductors with finite elements

Salas

Pleite

2009

2009 IEEE International Symposium on Industrial Electronics

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In this paper, we present a theoretical-experimental comparison of the voltage and current waveforms of an inductor which is included in a buck DC-DC converter at switching frequencies of 40 kHz and 100 kHz. Theoretical waveforms are obtained by combining separate magnetic and electrical modeling procedures. The magnetic modeling is done by Finite Element Analysis (FEA) while the electrical modeling is carried out with a commercial circuit simulator. We study the application of the procedure to an inductor with a ferrite core. It is applied specifically to an RM-shaped core used in power electronics. The comparison between measurements and numerical data obtained from simulations validates the procedure.

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“…3 where we show the distribution of the values of the B-field module on the surface of a saturated RM core, displaying a higher concentration on the central column. Therefore, the modeling of these ferrite inductors is a complicated task [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] as it involves solving nonlinear differential equations which cannot be solved by analytical equations. In order to model them it is necessary to measure the magnetic properties 7,8,9,12 and use design, simulation and Finite Element Analysis programs 14,15,17,18 .…”

Section: Introductionmentioning

confidence: 99%

Teaching the linked use of various softwares for the simulation of magnetic devices

Salas¹,

Pleite²

2013

Proceedings of the 2013 International Conference on Advanced Computer Science and Electronics Information

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-The modeling of ferrite inductors is a difficult task due to the nonlinearity of the magnetic fields and the great variety of shapes, sizes of the core and number of turns in the winding. This paper presents a procedure that integrates various standard softwares, modeling and simulation techniques and experimental measurements in order to simulate a soft ferrite inductor for use in a circuit simulator. This procedure is applied to the modeling and simulation of ferrite inductors widely used in the field of power electronics. It can be applied to undergraduate and postgraduate students and help them to understand the behavior of the circuits and the nonlinear physical phenomena involved in power electronics.

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Nonlinear Saturation Modeling of Magnetic Components With an RM-Type Core

Cited by 20 publications

References 2 publications

Simple Procedure to Compute the Inductance of a Toroidal Ferrite Core from the Linear to the Saturation Regions

Simple Procedure to Compute the Inductance of a Toroidal Ferrite Core from the Linear to the Saturation Regions

Accurate modeling of voltage and current waveforms of nonlinear inductors with finite elements

Teaching the linked use of various softwares for the simulation of magnetic devices

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