Hamed Hamzehbahmani
Eddy Current Loss Estimation of Edge Burr-Affected Magnetic Laminations Based on Equivalent Electrical Network—Part II: Analytical Modeling and Experimental Results
Hamzehbahmani, Hamed; Anderson, Philip; Hall, Jeremy; Fox, David
Authors
Philip Anderson
Jeremy Hall
David Fox
Contributors
Dr Hamed Bahmani hamed.h.bahmani@durham.ac.uk
Other
Abstract
In Part I of this two-part paper, fundamental concepts of interlaminar fault and its consequences on magnetic cores were presented. An equivalent configuration, which was proved by FEM modelling, was proposed for magnetic cores with interlaminar fault. In this Part II paper, based on the equivalent configuration of the core and equivalent circuit of eddy current path, an analytical model is developed to estimate eddy current power loss of magnetic cores with interlaminar faults in a wide range of magnetizing frequency. Important factors, such as skin effect, nonuniform flux density distribution, complex relative permeability and nonlinear relation of B (H), which are often neglected in the literature, are highlighted. Packs of two, three, and four Epstein-size laminations of conventional grain oriented were shorted together artificially to measure the extra power loss caused by the interlaminar fault and support the analytical modeling. It was found that in the magnetic cores affected by interlaminar fault, the skin effect is a determinant factor in the magnetic properties determinations, even at low frequencies.
Citation
Hamzehbahmani, H., Anderson, P., Hall, J., & Fox, D. (2013). Eddy Current Loss Estimation of Edge Burr-Affected Magnetic Laminations Based on Equivalent Electrical Network—Part II: Analytical Modeling and Experimental Results. IEEE Transactions on Power Delivery, 29(2), 651-659. https://doi.org/10.1109/tpwrd.2013.2279634
Journal Article Type | Article |
---|---|
Acceptance Date | Aug 22, 2013 |
Online Publication Date | Nov 8, 2013 |
Publication Date | Nov 8, 2013 |
Deposit Date | Aug 13, 2018 |
Publicly Available Date | Feb 5, 2019 |
Journal | IEEE Transactions on Power Delivery |
Print ISSN | 0885-8977 |
Electronic ISSN | 1937-4208 |
Publisher | Institute of Electrical and Electronics Engineers |
Peer Reviewed | Peer Reviewed |
Volume | 29 |
Issue | 2 |
Pages | 651-659 |
DOI | https://doi.org/10.1109/tpwrd.2013.2279634 |
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© 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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