传统Halbach列和双层Halbach列的比较

Comparative Research of Traditional Halbach Array and Double Halbach Array

Halbach列是永磁体排列的一种方式,对于提高电动机功率密度有较大的作用。比较了传统Halbach列和双层Halbach列所产生磁场的正弦性以及气隙磁密的大小。分析了双边单层Halbach列充磁方向不同时,气隙磁密分布曲线的正弦性差异;研究了不同双边型Halbach列结构的气隙磁密正弦性,并对其进行快速傅里叶变换,比较了各结构的优缺点。

Halbach array is one way of permanent magnets arrangement,useful in improving motor power density.This paper compares the results of traditional Halbach arrays sinusoidal magnetic field and the size of air-gap flux density with those of double Halbach array.The bilateral single Halbach array is studied to give a distribution curve of the air-gap flux density when the magnetization direction is changed.Sinusoidal air-gap flux density with different bilateral type Halbach structure is also studied using FFT.Advantages and disadvantages of each structure are analyzed and compared.