Output Torque Optimization of Switched Reluctance Motors

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  • スイッチトリラクタンスモータの出力トルクの最適化
  • スイッチトリラクタンスモータ ノ シュツリョク トルク ノ サイテキカ

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Abstract

The major advantages of Switched Reluctance Motors (SRM) are the simple and rugged motor construction, higher efficiency and low cost power electronics controller. However, SRM has essentially the high torque ripple and the magnetic noise due to its saliency.<br>This paper presents the examination of a special combination of space harmonics of inductance and time harmonics of current from the standpoint of instantaneous torque. The space harmonics distribution of inductance are closely related to the design of teeth configuration and the analysis shows the optimum combination of motor teeth dimension with current control strategy can improve the torque-per-(amp2) ratio with reducing the torque ripple. The experimental studies using the 1.5kW SRM show the combination of the 3rd space harmonic of inductance with the 3rd time harmonic of current improves the torque-per-(amp2) ratio, while the torque ripple can be suppressed within a reasonable range.

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