ALA转子电机的有限元模型

The Finite Element Computation Model of Electric Machine with ALA Rotor

用Ansoft软件建立ALA转子电机计算d、q轴参数时的2D有限元模型,在转子采用x、y轴两方向取不同的相对磁导率后,结果表明转子用各向异性线性模型能满足d、q轴参数计算要求,并且也能反映转子的饱和特性,而各向同性模型仅在求d轴参数时是可行的。至于在瞬态磁场分析时各向异性线性模型是否合适还需要作进一步的研究。

The paper founded the finite element computation 2D model of electric machine with ALA rotor by Ansoft software in order to compute the parameters in d and q axes direction. When different values are assigned to the relative permeability of the rotor material, the computation results show that anisotropic and linearity model is better because it can result in correct parameters computation and reflect the saturation influence of the rotor material on the computation results. At the same time it can be seen that isotropic model is useful only in calculating the parameter in d axis direction. It needs further research work to prove that the anisotropic and linearhy model is valid in transient magnetic field calculation.