定子鼠笼式智能多相电机绕组交流损耗研究

Research on Winding AC Loss of Intelligent Stator Cage Drive Multiphase Motor

针对定子鼠笼式智能多相电机定子绕组受到高频电流引起涡流效应、趋肤效应和邻近效应的问题,重点分析了不同因素对交流损耗的影响。采用有限元软件,建立定子鼠笼式电机模型,分析了绕组上的趋肤效应与邻近效应,探究定子槽型尺寸、导条槽内位置以及导条截面积对于绕组交流损耗的影响规律,对比研究不同极对数、不同材料下的交流损耗情况。研究结果表明:改变定子槽型尺寸、导条截面积以及绕组材料等可以明显降低定子绕组的交流损耗。

The high-frequency AC current in the winding of intelligent stator cage multiphase motor leads to the eddy current,proximity effect and skin effect.The influence of different factors on the AC loss is investigated.A finite element software is used to establish the model of the motor and analyze the proximity effect and skin effect of the winding.The influences of the slot size,conductor position and cross-sectional area on the AC loss are investigated.The AC loss of different pole pairs and materials is studied.The obtained results show that the AC loss can be reduced by changing the slot size,conductor cross-sectional area and winding material.