Efficiency Maps of Electrical Machines: A Tutorial Review
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(Accepted version)
Date
2023
Authors
Roshandel, E.
Mahmoudi, A.
Kahourzade, S.
Soong, W.L.
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Journal article
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IEEE Transactions on Industry Applications, 2023; 59(2):1263-1272
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Emad Roshandel, Amin Mahmoudi, Solmaz Kahourzade and Wen L. Soong
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Abstract
Efficiency maps (EffMs) illustrate the maximum efficiencies of electric machines over a range of torque-speed operating points. This article reviews the available techniques for efficiency map calculation and gives a general understanding of EffM modelling and interpretation for traction motors. It shows the accuracy versus calculation effort trade-off for different methods. The process of efficiency map calculation for sample induction motor and permanent magnet synchronous machines is explained. Calculation of EffMs using commercial software is also covered. Finally, possible future research opportunities in this field are suggested.
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© 2022 IEEE.