{"title":"Comprehensive study on in-plane eddy-current loss in permanent-magnet synchronous machines","authors":"Hideki Ohguchi, Shion Takigawa, Satoshi Imamori","doi":"10.1049/elp2.12386","DOIUrl":null,"url":null,"abstract":"<p>In-plane eddy-current loss in permanent-magnet synchronous machines has been comprehensively and analytically studied by using three-dimensional (3D) finite element method. Considering the accuracy and calculation time, the electrical conductivity in the stack direction should be set to zero in 3D analysis. Stacking factor is also an important analytical parameter in this kind of calculation. The influences of slot number and coil-end height have been clarified. Harmonics caused by an inverter in pulse-width-modulation or one-pulse mode result in additional in-plane eddy-current loss, which is independent of the slot number. This behaviour can be explained by a theoretical equation of the eddy-current loss. These results are useful for the analysis and design of highly efficient electrical machines.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/elp2.12386","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/elp2.12386","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In-plane eddy-current loss in permanent-magnet synchronous machines has been comprehensively and analytically studied by using three-dimensional (3D) finite element method. Considering the accuracy and calculation time, the electrical conductivity in the stack direction should be set to zero in 3D analysis. Stacking factor is also an important analytical parameter in this kind of calculation. The influences of slot number and coil-end height have been clarified. Harmonics caused by an inverter in pulse-width-modulation or one-pulse mode result in additional in-plane eddy-current loss, which is independent of the slot number. This behaviour can be explained by a theoretical equation of the eddy-current loss. These results are useful for the analysis and design of highly efficient electrical machines.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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