IPM Traction Machine With Single Layer Non-Overlapping Concentrated Windings |
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Authors: | Germishuizen J.J. Kamper M.J. |
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Affiliation: | Technol. & Innovation Dept., Loher GmbH, Ruhstorf, Germany; |
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Abstract: | In this paper, an interior permanent-magnet traction drive machine with single layer non-overlapping concentrated stator winding is analyzed. In the single layer winding design, the number of stator slots and a winding factor are specifically considered. Moreover, the effect of varying the coil pitch on the winding factor and torque pulsations is investigated. A new calculation method is proposed, whereby the constant torque and field-weakening speed characteristics of the machine drive can be predicted using torque and flux linkage functions. The measured and predicted field-weakening performance of a 150-kW direct traction drive machine is presented. |
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