{"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":13352,"journal":{"name":"Iet Electric Power Applications","volume":"18 3","pages":"278-286"},"PeriodicalIF":1.5000,"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":"Iet Electric Power Applications","FirstCategoryId":"5","ListUrlMain":"https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/elp2.12386","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","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：
IET Electric Power Applications publishes papers of a high technical standard with a suitable balance of practice and theory. The scope covers a wide range of applications and apparatus in the power field. In addition to papers focussing on the design and development of electrical equipment, papers relying on analysis are also sought, provided that the arguments are conveyed succinctly and the conclusions are clear.
The scope of the journal includes the following:
The design and analysis of motors and generators of all sizes
Rotating electrical machines
Linear machines
Actuators
Power transformers
Railway traction machines and drives
Variable speed drives
Machines and drives for electrically powered vehicles
Industrial and non-industrial applications and processes
Current Special Issue. Call for papers:
Progress in Electric Machines, Power Converters and their Control for Wave Energy Generation - https://digital-library.theiet.org/files/IET_EPA_CFP_PEMPCCWEG.pdf
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