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Célio L. Filho
Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás
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Israel R. Soares
Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás
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Khristian M. de Andrade Jr
Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás
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Bernardo P. de Alvarenga
Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás
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Geyverson T. de Paula
Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás
Keywords:
IPMSM, Finite Element Analysis (FEA), Reluctance Torque, Torque Ripple, Vector Control
Abstract
The aim of this paper is to investigate the reluctance torque and to propose a novel control strategies to reduce the steady-state torque ripples in Interior Permanent Magnet Synchronous Machine (IPMSM). Despite the conventional vector control strategy applied to the PMSM use zero dx-axis current to reduce the effect of the reluctance torque, this is unsuitable when it comes to the IPMSM due to the cross-coupling effect between the qx- and dx-axis. At first, a novel modeling of reluctance torque is proposes, which allows elaborating control strategy by means of injecting current in dx-axis to null the reluctance torque together with the cogging torque. For this purpose, it is necessary the machine parameters and pre-made lookup table. The results demonstrate the effectiveness of the proposed strategy and that the torque ripple can be totally reduced.
