Magnetic Field Calculation for Flat Permanent-Magnet Linear Machines Using a Hybrid Analytical Model
DOI:
https://doi.org/10.53907/enpesj.v1i2.36Keywords:
Hybrid magnetic model, exact subdomain technique, finite difference method, finite-element analysisAbstract
This paper proposes an improved two-dimensional (2-D) hybrid analytical method (HAM) in Cartesian coordinates, based on the exact subdomain (SD) technique and the finite-difference method (FDM). It is applied to flat permanent-magnet (PM) linear machines with dual-rotor. The magnetic field solution is obtained by coupling an exact SD model, calculated in all regions having relative permeability equal to unity, with FDM in ferromagnetic regions. The analytical model and FDM are connected in both axes (x,y) of the (non-)periodicity direction (i.e., in the interface between the tooth regions and all its adjacent regions as slots and/or air-gap). To provide accuracy solutions, the current density distribution in slot regions is modeled by using Maxwell’s equations. It is found that, whatever the iron core magnetic parameters, the developed HAM gives accurate results for no- and on-load conditions. Finite-element analysis (FEA) demonstrates excellent results of the developed technique.
Downloads
Published
Issue
Section
License
Copyright (c) 2021 ENP Engineering Science Journal
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Articles published under a Publisher Office user license are protected by copyright. Users may access, download, copy, translate, text and data mine the articles for non-commercial purposes provided that users:
- Cite the article using an appropriate bibliographic citation (i.e. author(s), journal, article title, volume, issue, page numbers, DOI and the link to the definitive published version)
- Maintain the integrity of the article
- Retain copyright notices and links to these terms and conditions so it is clear to other users what can and cannot be done with the article
- Ensure that, for any content in the article that is identified as belonging to a third party, any re-use complies with the copyright policies of that third party
- Any translations, for which a prior translation agreement with Publisher Office has not been established, must prominently display the statement: "This is an unofficial translation of an article that appeared in a Publisher Office publication. Publisher Office has not endorsed this translation."
This is a non commercial license where the use of published articles for commercial purposes is prohibited. Commercial purposes include:
- Copying or downloading articles, or linking to such postings, for further redistribution, sale or licensing, for a fee
- Copying, downloading or posting by a site or service that incorporates advertising with such content
- The inclusion or incorporation of article content in other works or services (other than normal quotations with an appropriate citation) that is then available for sale or licensing, for a fee
- Use of articles or article content (other than normal quotations with appropriate citation) by for-profit organizations for promotional purposes, whether for a fee or otherwise.
- Use for the purposes of monetary reward by means of sale, resale, license, loan, transfer or other form of commercial exploitation.