永久磁石同期モータの空間高調波を考慮した新しいトルク推定方法とトルクリプル低減

DOI Web Site Web Site BIBCODE 被引用文献11件 参考文献12件

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タイトル別名
  • New Torque Estimation Method Considering Spatial Harmonics and Torque Ripple Reduction in Permanent Magnet Synchronous Motors
  • エイキュウ ジシャク ドウキ モータ ノ クウカン コウチョウハ オ コウリョ シタ アタラシイ トルク スイテイ ホウホウ ト トルクリプル テイゲン

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抄録

This paper proposes a new torque estimation method that takes into account the spatial harmonics of permanent magnet synchronous motors and that is capable of real-time estimation. First, the torque estimation equation of the proposed method is derived. In the method, the torque ripple of a motor can be estimated from the average of the torque calculated by the conventional method (cross product of the fluxlinkage and motor current) and the torque calculated from the electric input power to the motor. Next, the effectiveness of the proposed method is verified by simulations in which two kinds of motors with different components of torque ripple are considered. The simulation results show that the proposed method estimates the torque ripple more accurately than the conventional method. Further, the effectiveness of the proposed method is verified by performing on experiment. It is shown that the torque ripple is decreased by using the proposed method to the torque control.

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