2024-03-28T11:58:52Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/746932022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Reduction of Eddy Current Loss in Rectangular Coils Using Magnetic Shield: Analysis With Homogenization MethodFujita, ShogoIgarashi, HajimeComplex permeabilityhomogenization methodmagnetic shieldproximity effectrectangular coil427Rectangular coils have been widely used in rotating machines and transformers because of high space factor and low dc resistance. However, eddy current losses due to skin and proximity effects in the rectangular coils cannot be ignored, especially when carrier harmonic increases. The eddy current loss due to the proximity effect would be effectively reduced by shielding the coils with a magnetic thin layer. In this paper, a method for homogenization-based analysis of a magnetically shielded rectangular coil is proposed. It is shown by the proposed method that the ac-resistance of a motor winding can be effectively reduced by introducing the magnetic shield.IEEE (Institute of Electrical and Electronics Engineers)Journal Articleapplication/pdfhttp://hdl.handle.net/2115/74693https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/74693/1/Reduction%20of%20Eddy%20Current%20Loss%20in%20Rectangular%20Coils%20Using%20Magnetic%20Shield%20Analysis%20with%20Homogenization%20Method.pdf0018-94641941-0069IEEE Transactions on Magnetics5570006042019-06enginfo:doi/10.1109/TMAG.2019.2907686© 2019 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.author