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Iron loss in a modular rotor switched reluctance machine for the "More-Electric" aero-engine

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4 Author(s)
Powell, D.J. ; Dept. of Electron. & Electr. Eng., Univ. of Sheffield, UK ; Jewell, G.W. ; Calverley, S.D. ; Howe, D.

This paper investigates the iron loss that results in a novel topology of switched reluctance (SR) machine which has been developed for application as a starter/generator within the high pressure region of an aero-engine. It will be shown that the machine has a significantly lower loss than that of an equivalent SR machine equipped with a conventional rotor and, thus, a lower operating temperature, which is a critical factor. The iron losses in the cobalt-iron stator and rotor laminations are calculated on a per-element basis using flux density data derived from electric circuit-coupled finite-element analysis.

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Magnetics, IEEE Transactions on  (Volume:41 ,  Issue: 10 )