Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101995
Title: Comparison between rare-earth and ferrite permanent magnet flux-switching generators for gearless wind turbines
Authors: Prakht, V.
Dmitrievskii, V.
Kazakbaev, V.
Ibrahim, M. N.
Issue Date: 2020
Publisher: Elsevier Ltd
Citation: Comparison between rare-earth and ferrite permanent magnet flux-switching generators for gearless wind turbines / V. Prakht, V. Dmitrievskii, V. Kazakbaev, et al. — DOI 10.1016/j.egyr.2020.11.020 // Energy Reports. — 2020. — Vol. 6. — P. 1365-1369.
Abstract: Flux switching generators with permanent magnets (PMs) on the stator is a good alternative to traditional synchronous generators for gearless wind turbines. This paper is dedicated to the comparison of the 3-phase rare-earth and ferrite PM flux switching generators considered in gearless wind generator application (332 rpm, 1784 W). The machines are designed and optimized using the Nelder–Mead algorithm coupled with 2D FEM model. The objective function is built taking into account the following objectives: the average efficiency of the generators over the wind turbine profile, the required power of the AC–DC converter, the quantity of the magnets and the torque ripple. It is found that the ferrite PM flux switching generator can be an attractive alternative to the rare-earth one. The averaged efficiency of the generator with ferrite PM is higher by 4.1% than that of the rare-earth one. The active power of the ferrite generator is also higher in a wide range of powers. Although the mass of the ferrite PM generator is 2.4 times higher, the costs of the generators are approximately similar since the rare-earth magnets are much more expensive than ferrite ones. © 2020 The Authors
Keywords: FERRITE MAGNETS
FLUX SWITCHING MACHINES
GEARLESS MACHINES
OPTIMIZATION
RARE-EARTH MAGNETS
WIND GENERATORS
EFFICIENCY
FERRITE
PERMANENT MAGNETS
RARE EARTHS
SWITCHING
WIND TURBINES
2-D FEM MODELING
AVERAGE EFFICIENCIES
FERRITE PERMANENT MAGNETS
FLUX-SWITCHING GENERATORS
OBJECTIVE FUNCTIONS
PERMANENT MAGNETS (PMS)
RARE EARTH MAGNET
WIND GENERATOR SYSTEMS
ELECTRIC GENERATORS
URI: http://hdl.handle.net/10995/101995
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85098067084
PURE ID: 20414426
9845646b-ca7f-4c8c-b4e2-2e83ae720768
ISSN: 23524847
DOI: 10.1016/j.egyr.2020.11.020
metadata.dc.description.sponsorship: The work was supported by Act 211 Government of the Russian Federation, contract No 02.A03.21.0006 .
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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