考虑磁滞及饱和的交流电机非线性模型的研究

Modeling of AC Machine Considering Hysteresis and Saturation

对具有非线性、强耦合、多变量、周期性的交流电机内部电磁运行规律进行研究和分析。应用数值分析 ,引入一个非线性磁链对线性磁链导数的因子 ,提出一种能够处理包括电机磁滞、饱和在内的非线性动态问题的方法 ,建立有效的电机数学模型。根据此模型进行数值仿真 。

The investigation of nonlinear electromagnetism dynamic performance of ac machine characterized by nonlinear,powerfully coupling multi-variables,and periodicity is carried out With application of numerical anlysis,a new method to deal with nonlinear problems including saturation,hysteresis is put forward in this paper An operator of differentiation of nonlinear magnetic flux linkage to linear magnetic flux linkage,which can be obtained by motor experiment with no-load or by finite element analysis,is introduced to linearize the nonlinear problem Based on abc foundation frame system an ac machine mathematical model closed to reality is created,and simulation results show the good effect of this method