利用ANSOFT软件对同步电动机静态特性的分析

本文基于电磁场仿真软件Ansoft建立了一种三相四极同步电动机的几何模型,并建立了相应的数学模型,利用该软件对模型进行有限元仿真与分析。通过运用麦克斯韦方程组和虚功原理,得到了该电动机在指定电流下磁力线及磁通密度分布图,并计算在不同电流下的自感、互感及转矩的大小及关系,这些数据为下一步的动态分析和控制设计打下基础。

Static Characteristics Analysis of Synchronous Motor with Ansoft

To study the magnetic field,inductance and torque,the 2-dimension(2-D) model of three phase synchronous motor is established by finite element method(FEM).Based on the 2-D model,the distribution of magnetic field,airgap magnetic flux density,torque and inductance are obtained in the case of load current by using Maxwell's equations and virtual work method.The formulations are then derived from this method.And the relationships of current,inductance and torque are obtained by numerical simulations.It is helpful to dynamic analysis and control design of the synchronous motor in next work.