Dapu Zhang, A. Ebrahimi, C. Wohlers, J. Redlich, B. Ponick
{"title":"On the analytical calculation of eddy-current losses in permanent magnets of electrical machines","authors":"Dapu Zhang, A. Ebrahimi, C. Wohlers, J. Redlich, B. Ponick","doi":"10.1109/IECON43393.2020.9255397","DOIUrl":null,"url":null,"abstract":"Eddy-current losses in permanent magnets of a surface-mounted permanent-magnet synchronous machine (SPMSM) are analytically calculated by solving magnetostatic and magnetodynamic field problems. The magnetostatic solution neglects the eddy-current reaction fields and depicts a large deviation compared to a Finite Element Analysis (FEA). A correction factor introduced into the magnetostatic calculation does not provide sufficient accuracy at high frequencies. The magnetodynamic calculation, which takes the eddy-current reaction fields into account, achieves a good agreement with a Finite Element Analysis.","PeriodicalId":13045,"journal":{"name":"IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society","volume":"25 1","pages":"1052-1056"},"PeriodicalIF":0.0000,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IECON43393.2020.9255397","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
Eddy-current losses in permanent magnets of a surface-mounted permanent-magnet synchronous machine (SPMSM) are analytically calculated by solving magnetostatic and magnetodynamic field problems. The magnetostatic solution neglects the eddy-current reaction fields and depicts a large deviation compared to a Finite Element Analysis (FEA). A correction factor introduced into the magnetostatic calculation does not provide sufficient accuracy at high frequencies. The magnetodynamic calculation, which takes the eddy-current reaction fields into account, achieves a good agreement with a Finite Element Analysis.
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