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Design and analysis of dual‐stator hybrid excited linear flux switching machine for long‐stroke applications

Authors :
Basharat Ullah
Faisal Khan
Ahmad H. Milyani
Naseer Ahmad
Khalid Mehmood Cheema
Source :
IET Electric Power Applications, Vol 15, Iss 12, Pp 1678-1691 (2021)
Publication Year :
2021
Publisher :
Wiley, 2021.

Abstract

Abstract In this work, a novel dual‐stator hybrid excited linear flux switching machine (DSHELFSM) is proposed. The proposed machine is suitable for long‐stroke applications as all the excitation sources are mounted on a short mover and the stator is completely passive. Second, the proposed machine uses ferrite magnets rather than the expensive rare earth permanent magnets (PMs) with the addition of field excitation to achieve flux‐regulation capability at various field currents. An iron bridge that provides an additional path for flux linkage to complete its circuit is used. Various design parameters such as split ratio, stator pole width, width and height of PM, the width of the iron bridge, width of mover's tooth, and stator slot depth are optimised using multivariable geometric optimisation (MGO) while keeping the slot area, electric and magnetic loading constant. The optimised design has improved the performance as compared to the initial design. Furthermore, the results obtained by 2D analysis are verified by 3D analysis. Thermal analysis is carried out to set the operating limit of the proposed machine.

Details

Language :
English
ISSN :
17518679 and 17518660
Volume :
15
Issue :
12
Database :
Directory of Open Access Journals
Journal :
IET Electric Power Applications
Publication Type :
Academic Journal
Accession number :
edsdoj.061e250e62544328bfcda4b4732e5cf2
Document Type :
article
Full Text :
https://doi.org/10.1049/elp2.12130