This paper presents a study of the effects obtained when a portion of permanent magnet material is replaced by a soft magnetic composite piece over the rotor poles of an axial flux machine. This technical solution can be adopted to increase the machine inductance in order to limit short circuit currents or to increase the motor saliency and implement sensorless control schemes based on high frequency signal injection. Some design rules for the design of the soft magnetic poles have been derived in order to obtain the desired inductance and/or saliency. The analysis has been validated with finite element analisys and numerical simulations using Matlab/Simulink environment. Some preliminary experimental results have also been reported.

Analysis of two-part rotor, axial flux permanent magnet machines / Pellegrino, GIAN - MARIO LUIGI; Giangrande, P.; Cupertino, F.; Ronchetto, Davide; Sumner, M.. - STAMPA. - (2011), pp. 1576-1581. (Intervento presentato al convegno 2011 IEEE Energy Conversion Congress and Exposition, ECCE 2011 tenutosi a Phoenix (USA) nel September 17-22, 2011) [10.1109/ECCE.2011.6063970].

Analysis of two-part rotor, axial flux permanent magnet machines

PELLEGRINO, GIAN - MARIO LUIGI;RONCHETTO, DAVIDE;
2011

Abstract

This paper presents a study of the effects obtained when a portion of permanent magnet material is replaced by a soft magnetic composite piece over the rotor poles of an axial flux machine. This technical solution can be adopted to increase the machine inductance in order to limit short circuit currents or to increase the motor saliency and implement sensorless control schemes based on high frequency signal injection. Some design rules for the design of the soft magnetic poles have been derived in order to obtain the desired inductance and/or saliency. The analysis has been validated with finite element analisys and numerical simulations using Matlab/Simulink environment. Some preliminary experimental results have also been reported.
2011
9781457705427
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2418765
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