Analysis on the Air-Gap Magnetic Flux Density and Propulsion of the TFLSM Considering Cogging Effect

Lv, Gang; Zhi, Ruodong; Cui, Leilei; Zhang, Zhixuan; Liu, Yaqing

doi:10.1109/tmag.2022.3228010

Cited by 2 publications

(1 citation statement)

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“…Therefore, the catalog data also often presents the dependence of magnetic permeability µ on temperature T, frequency f, the magnetic force H, and the length of the air gap in the core l p [28,34]. The use of an air gap in the core enables the linearization of the core characteristics, but at the same time it reduces magnetic permeability and thus the inductor inductance [28,35]. As it results from [16,29,31], the effect of temperature on the magnetization curve of the core is significant and noticeable for cores made of ferrite and nanocrystalline materials, while this effect is practically not observed for cores made of iron powder [29].…”

Section: Factors Causing Non-ideal Characteristics Of Magnetic Elementsmentioning

confidence: 99%

SPICE-Aided Models of Magnetic Elements—A Critical Review

Górecki,

Detka

2023

Energies

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This article analyzes the problem of modeling the properties of such magnetic elements as inductors, coupled inductors, and transformers using the SPICE software (version 17.2). Both the classical models of magnetic elements, built in this software, and the models implemented in the form of subcircuits are described. In particular, attention was paid to the possibility of taking into account the non-linearity of the characteristics of the considered elements and mutual couplings between electrical, magnetic, and thermal quantities. Using the results of thermographic measurements, the need to take into account the differences in temperature values between the individual windings and the core of inductors and transformers was justified. Selected models of the considered elements given in the literature are briefly characterized. The network structures of the electrothermal models of the considered elements elaborated at Gdynia Maritime University are presented. The results of calculations and measurements illustrating the correctness of the described models and their prac-tical usefulness for the elements of different structures are presented and discussed.

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