中文摘要：

对于分段供电直线感应电动机,其定子绕组互感存在较大的不对称,基于磁动势理论,推导出分段供电直线感应电机的单相绕组磁动势分布,明确了分段供电直线电机磁动势分布的特点。基于单相绕组的磁动势分布,推导了分段供电直线电机气隙磁场分布的解析表达式,有限元仿真结果验证了解析分析的正确性。根据电机磁场的分析结果,推导了电机各相绕组自感和互感表达式,说明了分段供电直线电机互感不对称的机理,在此基础上得到的电机电感矩阵和阻抗矩阵说明了电机互感和阻抗不对称的规律,试验结果验证了所推导电机阻抗矩阵的正确性。

英文摘要：

For segment-powered linear inductive motor,there is major asymmetry among the mutual inductance of stator windings.Based on magnetic motive force theory,this paper derived the magnetic motive force distribution of single-phase winding of the segment-powered linear inductive motor,and confirmed the characteristics of magnetic motive force distribution of the segment-powered linear inductive motor.Based on the magnetic motive force distribution of single-phase winding,the analytic expressions of air-gap field distribution of the segment-powered linear motor were derived,and the finite element simulation results verified the analytic results.Based on analysis results of motor magnetic field,the self-inductance and mutual-inductance expressions of each phase winding of motor were derived,which explained the mechanics of the mutual inductance asymmetry of segment-powered linear motor.And based on that,the obtained motor inductance matrix and resistance matrix illustrated the asymmetry laws of the motor mutual inductance and resistance.Finally the experiment results verified the correctness of the derived motor resistance matrix.