摘要
永磁无刷直流电动机的集中绕组及120°的永磁体宽度使其电感系数在空间呈非正弦分布,其高次谐波尤其是二次谐波不可忽略,这一特点使得永磁无刷直流电动机表现出多重凸极现象,给位置估计带来困难。针对这一问题,提出了一种基于坐标变换的解耦模型,并进行了实验研究,实验结果证明了该模型的有效性。
The inductance space distribution curve of brushless DC motor is non-sine waveform because of its centralized stator windings and 120 degree-wide permanent magnet.These factors make brushless DC motor in multiple saliencies and make the position estimation more difficult.To solve this problem,a decoupling model based on coordinate transformation was presented and related experiments were also performed.The results show that the model works well.
出处
《微特电机》
北大核心
2009年第10期7-10,共4页
Small & Special Electrical Machines
基金
江苏省教育厅高校科技成果产业推进工程项目基金(JHB06-25)
关键词
集中绕组
电感矩阵
坐标变换
多重凸极
解耦模型
centralized windings
inductance matrix
coordinate transformation
multiple saliencies
decoupling model
