The reduction of fringing effect loss in gapped ferrite inductors by changing the resistance and diameter of windings

Kasikowski, R.; Więcek, B.

doi:10.21611/qirt.2018.p17

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Evidence can be found that merely transforming a single air gap into a dual entity may bring about a significant alteration of the fringing flux distribution and result in a reduction in the discrepancy in temperature between the section of the winding located directly over the air gap and away from it [23]. If this were to be expanded to include a higher number of gaps in the magnetic path formed by consecutive subdivisions of the initial air gap, a further decrease in the effects of the fringing magnetic field would be observed.…”

Section: Quasi-distributed Gap Configurationmentioning

confidence: 99%

Controlling magnetic inductance by air-gap configuration in power electronics applications

2024

Archives of Electrical Engineering

View full text Add to dashboard Cite

Gapped magnetic components are inherent to applications where conversion of power would force magnetic flux density beyond the saturation point of magnetic materials. A physical discontinuity in a magnetic path, which an air gap represents, signifies a drastic change in its reluctance to magnetic flux. This gives rise to a phenomenon referred to as the fringing effect, which impacts the performance of magnetic components. The fringing flux also affects the physical properties of magnetic components, such as magnetic reluctance and inductance. Since inductance of gapped magnetic components is a function of the size of the air gap, a relatively simple change to the configuration of the air gap or splitting a single gap into a plurality of gaps entails, frequently, a radical change to the magnetic circuit of the component. This paper examines the way the air-gap configuration affects the distribution of the fringing flux and, by extension, magnetic reluctance and inductance. A method to aid the design of multigap inductors is presented based on 3-D electromagnetic modelling as well as measurements. An analytic expression, which closely approximates the required length of quasi-distributed gaps substituting a single gap, is developed.

show abstract

Section: Quasi-distributed Gap Configurationmentioning

confidence: 99%

Controlling magnetic inductance by air-gap configuration in power electronics applications

2024

Archives of Electrical Engineering

View full text Add to dashboard Cite

show abstract

“…When approaching the air gap, the magnetic field lines, which until that point are entirely enclosed by the core, tend to fringe out beyond the cross-sectional area of the core and enter the surrounding medium, usually copper winding [19].…”

Section: Introductionmentioning

confidence: 99%

PFC Inductor Design Considering Suppression of the Negative Effects of Fringing Flux

et al. 2022

View full text Add to dashboard Cite

In this paper, the main aim of the study was the investigation of the possibilities of power inductor design, reflecting the performance of the component itself, as well as the operational efficiency of the power factor correction (PFC) converter. PFC inductors represent a key component of the converter, while within the design of any magnetic component, several design rules must be considered to provide proper operational performance. Here we discuss skin-effect, while the proximity effect and formation of fringing flux pose a more serious problem in terms of mitigating their negative impact. Therefore, in this study, the space is devoted exclusively to the analysis of the impact of the fringing flux of the PFC inductor and subsequently to the possibilities of its suppression. The resulting optimizations are reflected in the investigation of the operational efficiency of the PFC converter.

show abstract

Mitigation of Ground Leakage Current of Single-Phase PV Inverter Using Hybrid PWM With Soft Voltage Transition and Nonlinear Output Inductor

Shen

Chung

2021

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

The reduction of fringing effect loss in gapped ferrite inductors by changing the resistance and diameter of windings

Cited by 3 publications

References 0 publications

Controlling magnetic inductance by air-gap configuration in power electronics applications

Controlling magnetic inductance by air-gap configuration in power electronics applications

PFC Inductor Design Considering Suppression of the Negative Effects of Fringing Flux

Mitigation of Ground Leakage Current of Single-Phase PV Inverter Using Hybrid PWM With Soft Voltage Transition and Nonlinear Output Inductor

Contact Info

Product

Resources

About