Modern IPM motors, suited to large constant-power speed ranges, have a multiple flux-barrier rotor structure and show a quite complex magnetic behaviour. In this paper the flux-current relationship of such motors is analysed and a simplified but effective model of the cross-saturation phenomenon is proposed and verified by experiment. In addition, new flux variables are introduced, that allow a rigorous splitting of PM and reluctance torques. It is shown that the PM contribution to torque is larger than expected from the PM no-load flux. This can lead to more accurate machine design and control strategies.

Accurate Magnetic Modelling and Performance Analysis of IPM-PMASR Motors / Vagati, Alfredo; Armando, Eric Giacomo; Pellegrino, GIAN - MARIO LUIGI; Guglielmi, Paolo; Pastorelli, MICHELE ANGELO. - STAMPA. - 1:(2007), pp. 133-140. ((Intervento presentato al convegno 2007 IEEE Industry Applications Annual Meeting tenutosi a New Orleans nel 23-27 sept. 2007 [10.1109/07IAS.2007.29].

Accurate Magnetic Modelling and Performance Analysis of IPM-PMASR Motors

VAGATI, Alfredo;ARMANDO, Eric Giacomo;PELLEGRINO, GIAN - MARIO LUIGI;GUGLIELMI, PAOLO;PASTORELLI, MICHELE ANGELO
2007

Abstract

Modern IPM motors, suited to large constant-power speed ranges, have a multiple flux-barrier rotor structure and show a quite complex magnetic behaviour. In this paper the flux-current relationship of such motors is analysed and a simplified but effective model of the cross-saturation phenomenon is proposed and verified by experiment. In addition, new flux variables are introduced, that allow a rigorous splitting of PM and reluctance torques. It is shown that the PM contribution to torque is larger than expected from the PM no-load flux. This can lead to more accurate machine design and control strategies.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/1645844
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