3901 高次電流重畳による電動機の加振力低減の計算検討(G10-1 電磁気,音波関連技術,G10 機械力学・計測制御)

概要

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The distributed winding IPM motor with 48 teeth on the stator and 4 pairs of poles on the rotor is treated To reduce the torque ripple, the related equation between torque and three phase alternating currents is derived from the torque result with the plane electromagnetic field Finite Element Analysis. This equation seems to be coincident with the FEM torque result. And high order currents to reduce the torque ripple derived from the equation are superposed on the basic currents, then the plane electromagnetic field analysis is performed again to confirm more than 25dB reduction of torque ripple with 2.2% torque drop. This methodology is also applied to the radial oscillating force that causes a motor radiation noise. And the amount of the oscillating force reduction is attained by about 20dB with the 2.8% increase of the averaged torque.
社団法人日本機械学会の論文
2005-09-18