Transient simulation of magnetic circuits using the permeance-capacitance analogy

Allmeling, Jost; Hammer, Wolfgang; Schönberger, John

doi:10.1109/compel.2012.6251786

Cited by 43 publications

(26 citation statements)

References 8 publications

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“…2. This block is already provided by the system-level simulation software PLECS for power electronics [2]. The magnetomotive force F between two terminals is divided by l and provided as field strength input H to the C-Script block, inside which µH is calculated following the formulation introduced by [5].…”

Section: Classical Modelmentioning

confidence: 99%

“…For modelling complex magnetic structures however, no publication has introduced this approach to magnetic circuits so far. As an extension to the work done by [2], this paper proposes an approach to implement the combined hysteresis model as a permeance-capacitance based magnetic circuit, which is able to simulate hysteresis effects of soft core materials accurately. Also, a parameter identification scheme is introduced whcih is simpler than the one presented in [8].…”

Section: Introductionmentioning

confidence: 99%

“…If this effect can be modeled into time-domain simulation of power electronic circuits, the performance of the magnetic component with respect to different design configurations can be sufficiently evaluated before constructing a prototype, so that the number of hardware iterations can be, possibley, reduced. Magnetic circuits based on permeance-capacitance analogy introduced by [1] have been proved to be practical for fast circuit simulation in the work of [2], [3] and [4]. Fig.…”

Section: Introductionmentioning

confidence: 99%

“…1(b) demonstrate the model of a four-winding transformer and its gyrator-type interface with the electrical circuit. The [2] have also implemented a hysteresis core block based on the classical Preisach model with the formulation proposed by [5]. In this way, one can dynamically simulate the hysteresis effect under arbitrary excitation conditions.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Modelling hysteresis of soft core materials using permeance-capacitance analogy for transient circuit simulations

Luo

Dujić

Allmeling³

2017

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)

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Magnetic components using soft core materials are widely used in power electronic converters. The hysteresis effect of the material leads to power loss and harmonic distortion. If this effect can be modeled in system-level time-domain simulation, the performance of the magnetic component in combination with power converters can be predicted more accurately during the design phase. This work proposes an approach to model the hysteresis effect of soft magnetic materials in magnetic circuits based on the permeance-capacitance analogy.

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Section: Classical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling hysteresis of soft core materials using permeance-capacitance analogy for transient circuit simulations

Luo

Dujić

Allmeling³

2017

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)

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“…In comparison, lumped magnetic circuit approach is able to achieve high simulation speed, for which reluctance-and permeance representation are available today. The permeance representation proposed in [1] can be solved by ordinary differential equation (ODE) solver without any time-consuming iterations, and is therefore preferred for system-level power electronic simulations [2]. However, the simplification of core geometry required by the lumped modeling approach may result in considerable error, if the material's nonlinearity should be considered.…”

Section: Introductionmentioning

confidence: 99%

Permeance based modelling of the core corners considering magnetic material nonlinearity

Luo

Dujić

2015

IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

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Abstract-Lumped magnetic circuit provides possibility for fast transient simulation of magnetic component together with power electronics circuit. The simplified geometry representation however is not able to completely reflect the real field distribution, especially when material nonlinearity is included. To model electrical characteristic of the magnetic components closer to the reality, special treatment is needed to determine geometrical parameters of the lumped representation. In this paper, modeling of the curved areas (e.g. core corners) based on permeances is presented and compared with FEM simulations.

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Practical Aspects of Instantaneous Magnetization Power Functions of Silicon Iron Laminations

Pfützner

Shilyashki

Bengtsson³

et al. 2022

J. Electr. Eng. Technol.

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Magnetic energy loss P of SiFe steel represents a key factor for the efficiency of soft magnetic machine cores. Traditionally, they are operated with 50 Hz (or 60 Hz), a frequency value that yields rather balanced portions of hysteresis loss and eddy current loss. In equivalent circuits of transformers, P tends to be represented by a magnetic power resistance RM, as a constant. For the most important case of sinusoidal induction B of 50 Hz, this would correspond to an instantaneous magnetization power function p(t) that is sinusoidal as well, however, with 100 Hz (or 120 Hz). On the other hand, from complex, non-linear mechanisms of hysteresis, it is obvious that p(t) should be strongly non-sinusoidal, even for exactly sinusoidal B(t). So far, almost all corresponding instantaneous investigations were restricted to calculated modelling of loss portions and transient modelling. On the other hand, for the first time, the present study was focussed on functions p(t) as measured at IEC-standardized samples of industrially relevant steel. Practical evaluations are discussed with respect to the revealed “history” of magnetization processes, as well as for product characterization. For these tasks, a novel digitized “Low-mass Single Sheet Tester” was developed that was applied for both non-oriented steel (NO) and grain-oriented steel (GO), for 50 Hz. Interpretations proved to be favoured by relating p(t) to total P, according to an instantaneous power ratio. As a result, both steel types revealed strongly non-sinusoidal power functions, with short durations of negative p. Negative p proved to be most pronounced for NO steel, as a measure for the onset of reversible turns of atomic moments. As a consequence, p(t) comprises strong upper harmonics of 200 Hz and even 300 Hz. Based on theoretical considerations, we split p(t) in a dissipative loss power function pL(t) and in a potential energy power function pP(t). Finally, we used p(t) to determine the corresponding power resistance RM(t) that proves to be a distinctly nonlinear function as well. It resembles a rectified co-sinus, also exhibiting short negative spikes that reflect the crystallographic dis-orientation of the polycrystalline material.

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Transient simulation of magnetic circuits using the permeance-capacitance analogy

Cited by 43 publications

References 8 publications

Modelling hysteresis of soft core materials using permeance-capacitance analogy for transient circuit simulations

Modelling hysteresis of soft core materials using permeance-capacitance analogy for transient circuit simulations

Permeance based modelling of the core corners considering magnetic material nonlinearity

Practical Aspects of Instantaneous Magnetization Power Functions of Silicon Iron Laminations

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