21Jul 2022 by admin No Comments
Experimental Assessment of Cryogenic Cooling Impact on Induction Motors (2022)

Experimental Assessment of Cryogenic Cooling Impact on Induction Motors (2022)

EC
Research topic: Electrical MachineCryogenic Experimental Assessment of Cryogenic Cooling Impact on Induction Motors Luís F. D. Bucho; João F. P. Fernandes; Marco Biasion; Silvio Vaschetto; Andrea Cavagnino;Journal: IEEE Transactions on Energy Conversion (2022)(Check this article) Short Abstract: In this work, an experimental assessment of the influence of cryogenic cooling in a conventional induction motor is presented. The performance of a fractional kilowatt induction motor is evaluated when submerged in liquid nitrogen. Using the single-phase equivalent electric circuit, the influence of the temperature and skin-effect is analyzed in the variation of the machine’s parameters, under ambient and cryogenic conditions. Also, the variation of the iron core and mechanical losses are evaluated. An analytical methodology is proposed to estimate the change of motor performance under cryogenic conditions. The experimental tests in cryogenic conditions show the…
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21Jul 2022 by admin No Comments
Optimal Design of an Interior Permanent Magnet Synchronous Motor with Cobalt Iron Core (2021)

Optimal Design of an Interior Permanent Magnet Synchronous Motor with Cobalt Iron Core (2021)

EC, NMM
Research topic: Electrical Machine DesignCobalt-Iron Optimal Design of an Interior Permanent Magnet Synchronous Motor with Cobalt Iron Core Pedro P. C. Bhagubai, Luís F. D. Bucho, João F. P. Fernandes and P. J. Costa BrancoJournal: Energies (2022)(Check this article) Short Abstract: The use of a cobalt-iron (VaCoFe) core is investigated as an alternative to silicon-iron (FeSi) in the design of interior permanent magnet synchronous motors (IPMSM). Considering VaCoFe and FeSi cores, a spoke-type IPMSM geometry is optimized for a torque range up to 40 N·m, providing a general comparative analysis between materials. This is done considering the application of a four-motor competition vehicle’s powertrain. VaCoFe allows an estimated increase of up to 64% in torque for the same efficiency level, or up to 5% in efficiency for the same torque. Additional…
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