This paper deals with the development and imple- mentation of an on-line technique for the identification of the stator resistance and permanent magnet flux linkage on three- phase, open-end winding, permanent magnet synchronous motor (PMSM) drives. The stator resistance and permanent magnet flux linkage are independently determined by exploiting a special cur- rent vector control strategy, which holds one of the phase currents at zero while suitably modifying the other two in order to keep the magnetomotive force unchanged. As will be demonstrated, no additional sensors or special tests are required by the proposed technique; moreover, motor electrical parameters can be on-line estimated in a wide operating range, avoiding any detrimental impact on the torque capability of the PMSM drive. Finally, the electrical machine thermal status can be also estimated from ob- tained values of the stator resistance and permanent magnet flux linkage.

On-Line Stator Resistance and Permanent Magnet Flux Linkage Identification on Open-End Winding PMSM Drives

Giuseppe Scarcella;Giacomo Scelba;Antonio Testa;
2019-01-01

Abstract

This paper deals with the development and imple- mentation of an on-line technique for the identification of the stator resistance and permanent magnet flux linkage on three- phase, open-end winding, permanent magnet synchronous motor (PMSM) drives. The stator resistance and permanent magnet flux linkage are independently determined by exploiting a special cur- rent vector control strategy, which holds one of the phase currents at zero while suitably modifying the other two in order to keep the magnetomotive force unchanged. As will be demonstrated, no additional sensors or special tests are required by the proposed technique; moreover, motor electrical parameters can be on-line estimated in a wide operating range, avoiding any detrimental impact on the torque capability of the PMSM drive. Finally, the electrical machine thermal status can be also estimated from ob- tained values of the stator resistance and permanent magnet flux linkage.
2019
AC motor drives, dual-inverter, field-oriented control, open-end winding motor drive, parameter estimation, per- manent magnet (PM) motors.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/360404
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