Simple Circuit Simulation Models for Eddy Current in Magnetic Sheets and Wires

Shindo, Yuji; Noro, Osamu

doi:10.1541/ieejfms.134.173

Cited by 37 publications

(27 citation statements)

References 3 publications

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“…The coefficients of the linear combinations are voltage or current variables of the equivalent circuit. Although this method can be regarded as an enhancement of one-dimensional modeling method using orthogonal polynomials (6) (7) , the usability is much extended a) Correspondence to: Yuji Shindo. E-mail: shindo yuji@khi.…”

Section: Introductionmentioning

confidence: 99%

Dynamical Model of an Electromagnet using Cauer Ladder Network Representation of Eddy-current Fields

Shindo

Kameari²,

Sugahara

et al. 2018

IEEJ Journal IA

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This paper presents a novel dynamical modeling method for magnetic actuators. The magnetic field is decomposed into orthogonal distribution functions by using the Cauer ladder network representation of eddy-current fields. The linearized transfer function of the magnetic force is derived by using the Maxwell's stress tensor and distribution functions. The numerical example of an electromagnet is presented to show the effectiveness of this method. It is revealed that the eddy current not only reduces the main flux but also induces a repulsive force at the air gap. The details of the Cauer ladder network representations are also clarified.

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Section: Introductionmentioning

confidence: 99%

Dynamical Model of an Electromagnet using Cauer Ladder Network Representation of Eddy-current Fields

Shindo

Kameari²,

Sugahara

et al. 2018

IEEJ Journal IA

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“…Recently it has been pointed out that the equivalent circuit can directly be generated from the exact solutions to eddy current problems [2]. Although this method is promising from aspects of numerical accuracy and computational complexity, it can only treat simple structures such as plates and cylinders.…”

Section: Introductionmentioning

confidence: 99%

Generation of Equivalent Circuit From Finite-Element Model Using Model Order Reduction

Sato

Igarashi

2016

IEEE Trans. Magn.

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This paper proposes equivalent-circuit generation from the finite element (FE) model of electromagnetic devices using model order reduction (MOR). In this method, an equivalent circuit is directly generated from the reduced transfer function obtained using MOR based on Padé approximation via the Lanczos process. It is shown that the generated circuit yields sufficiently accurate results in both frequency and time domains. Moreover, the computational time of the present method is much shorter than that of circuit generation based on frequency sweep using the conventional FE analysis.Index Terms-DC-DC converter, equivalent circuit, finite element method, model order reduction.

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“…Recently the equivalent circuit of ladder configuration has been directly derived from the analytical expression of eddy currents in electrical steel sheets [3]. This method would be valid for fields in simple geometry which can be expressed in a closed form.…”

Section: Introductionmentioning

confidence: 99%

Equivalent-Circuit Generation From Finite-Element Solution Using Proper Orthogonal Decomposition

2016

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Simple Circuit Simulation Models for Eddy Current in Magnetic Sheets and Wires

Cited by 37 publications

References 3 publications

Dynamical Model of an Electromagnet using Cauer Ladder Network Representation of Eddy-current Fields

Dynamical Model of an Electromagnet using Cauer Ladder Network Representation of Eddy-current Fields

Generation of Equivalent Circuit From Finite-Element Model Using Model Order Reduction

Equivalent-Circuit Generation From Finite-Element Solution Using Proper Orthogonal Decomposition

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