基于绕组函数的长定子直线同步电机建模研究  

Modeling of long-stator linear synchronous motors based on winding function

作　　者：包广清[1] 梁铜川 

机构地区：[1]兰州理工大学电气工程与信息工程学院

出　　处：《机电工程》2014年第3期361-366,共6页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金资助项目(51267011);甘肃省杰出青年基金资助项目(1111RJDA007)

摘　　要：针对精确的直线同步电机数学模型建立困难的问题,提出了基于绕组函数法的长定子直线同步电机绕组电感的计算方法,并推导出了直线电机各电感参数计算公式,然后建立了相应的直线同步电机数学模型。此外,利用电感参数在Simulink里搭建了直线同步电机矩阵微分方程,通过仿真结果得到了三相电流、励磁电流和电磁推力波形。最后,基于长定子同步直线电机的结构尺寸建立了一对极有限元模型,定子绕组通入三相交流电,动子绕组通入直流励磁电流,通过设置适当的剖分,将得到的电磁推力和解析法的电磁推力进行了对比。研究结果表明,有限元分析法和解析法得到的电磁推力结果一致,从而论证了基于绕组函数法的直线电机数学模型建模方法,为以后的直线电机数学建模提供了参考。Aiming at the diffculties of establishing the precise direct synchronous motor mathematical formula,the method of basing on the calculation of the winding function method of long stator linear synchronous motor winding inductance,deducing the formula for the induction parameters of direct motors,and founding the direct synchronous motor model,was proposed.Additionaly,by using the Simulink,the induction parameters the matrix differential equations of direct synchronous motor can be set up with the induction parameters,then the waves of three phase current,magnetic current and magnetic force could be obtained.Finally,a pair polar finite element model resting on the structure of long stator direct synchronous motor can be launched.Giving the three phase current to the stator,direct magnetic current to rotor windings,and proper divisions,the electrical magnetic force can be acquired which will be compared with the result from analytical method.The results indicate that the electrical magnetic pushing force from two methodologies consistent,furthermore the correctness of the method for the direct motor mathematical models depending on the approach of winding function is proved which gives the reference to the future mathematical models of direct motor.

关 键 词：直线电机 绕组函数 电磁推力 MAXWELL 2D 

分 类 号：TH39[机械工程—机械制造及自动化] TM359.4[电气工程—电机]