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DOI	10.1049/elp2.12448
	On the relation between performance and permanent demagnetisation in spoke type machines with ferrite magnets
	Silva, Marcelo D.; Eriksson, Sandra
发表日期	2024
ISSN	1751-8660
EISSN	1751-8679
英文摘要	The use of rare earth elements (REE) in permanent magnets (PMs) raises problems in several domains. The supply chain of these is fragile, the prices have shown volatility and its manufacturing has a bigger impact on climate change when compared to the manufacturing of other PMs. Instead, ferrite PMs have been researched as an alternative. This alternative shows a relatively higher demagnetisation risk when compared to REE PMs. Thus, a detailed study on permanent demagnetisation during winding faults is crucial. The authors use the finite element method to evaluate different machine designs, developed under mechanical constraints, and explore several strategies to mitigate permanent demagnetisation. Also, the importance of avoiding permanent demagnetisation is changed gradually in the optimisation process. The results show that the protection of the PM and performance optimisation are irreconcilable goals. It also highlights the impact of the stator design in decreasing demagnetisation. Additionally, it is shown that the classic notion of avoiding demagnetisation is an ineffective strategy for designing high-performance machines with ferrite magnets, and instead, it should be integrated into the optimisation process and weighted according to the application demands. The authors use the finite element method to evaluate different machine designs, developed under mechanical constraints, and explore several strategies to mitigate the permanent demagnetisation of ferrite permanent magnets. During the optimisation process, the importance of avoiding permanent demagnetisation is changed gradually. The results show that the classic notion of totally avoiding permanent demagnetisation is an ineffective strategy for designing high-performance machines with ferrite magnets. image
英文关键词	asymmetrical faults; demagnetisation; electromobility; ferrite magnets; optimisation; permanent magnet machines
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:001235925100001
来源期刊	IET ELECTRIC POWER APPLICATIONS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298091
作者单位	Uppsala University
推荐引用方式 GB/T 7714	Silva, Marcelo D.,Eriksson, Sandra. On the relation between performance and permanent demagnetisation in spoke type machines with ferrite magnets[J],2024.
APA	Silva, Marcelo D.,&Eriksson, Sandra.(2024).On the relation between performance and permanent demagnetisation in spoke type machines with ferrite magnets.IET ELECTRIC POWER APPLICATIONS.
MLA	Silva, Marcelo D.,et al."On the relation between performance and permanent demagnetisation in spoke type machines with ferrite magnets".IET ELECTRIC POWER APPLICATIONS (2024).