Analytic loss calculation for E-core inductors including the end windings

authored by

Johannes Heseding, Axel Mertens

Abstract

This paper presents an analytical approach to calculate the losses of an E-core inductor with litz wire windings for DC/DC-applications with special emphasis on the end winding losses. The central assumption for calculating the end winding losses is the modeling of both end windings as an air coil. The magnetic field of this air coil is calculated by assuming that a single strand can be seen as an infinitely thin conductor. The calculated results are compared to a combined, planar and axisymmetric 2D-FEM model and to measurements. The results show that the losses in the end windings are significant and amount to 15 to 30 percent of the total losses.

Organisation(s)

Institute of Drive Systems and Power Electronics
Power Electronics and Drive Control Section

Type

Conference contribution

Pages

1421-1427

No. of pages

7

Publication date

2016

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electrical and Electronic Engineering, Control and Optimization, Renewable Energy, Sustainability and the Environment, Artificial Intelligence, Hardware and Architecture, Energy Engineering and Power Technology

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://ieeexplore.ieee.org/document/7499520 (Access: Closed)