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Analysis of Flux Fringing for High-Frequency AC Inductor Design

Krishnan, Anusyutha and Parikshith, BC and John, Vinod (2010) Analysis of Flux Fringing for High-Frequency AC Inductor Design. In: National Power Electronics Conference, June 10 - 13, 2010, Roorkee.

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Design of high-frequency inductors for purposes like Active Front End (AFE) converter filters involves analytical calculations based on methods like area product approach and accurate graphical methods. Once a core with an area product is selected the subsequent calculations of inductance and peak operating flux requires the estimation of reluctance of the magnetic circuit. This in turn demands an estimate of the fringing that will happen in the air gap of the inductor. In this paper we have looked at analytical methods for evaluating fringing flux and compared it with results from finite element method. Different levels of details of modelling the inductor is first considered for this purpose. The end results are compared with experimental measurements of inductance. It is shown that simple fringing flux model can provide accurate models for the inductor design.

Item Type: Conference Paper
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 14 Jul 2010 11:10
Last Modified: 19 Sep 2010 06:11
URI: http://eprints.iisc.ac.in/id/eprint/29244

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