三维直线感应电动机牵引力计算方法  

Traction Calculation Method for 3-Dimension Linear Induction Motors

作　　者：陶诗骏[1] 刘少克[1] 郑明华[1] 

机构地区：[1]国防科技大学,湖南长沙410073

出　　处：《微特电机》2010年第12期24-26,30,共4页Small & Special Electrical Machines

基　　金："十一五"国家科技支撑计划重点项目(2006BAG02B05)

摘　　要：二维有限元计算方法不能考虑电机横向有限宽度的影响,而三维有限元计算方法耗时巨大。在二维多层理论的基础上,对电机横向初级电流进行周期延拓,采用傅里叶谐波法,建立了直线感应电动机三维电磁场模型。通过计算三维电磁场量来得到电机牵引力,计算结果与实验测试结果进行了比较。Limited lateral width of linear induction motors could not be considered in the two-dimensional finite element method,while three-dimensional finite element method takes long time to carry out.Based on the two-dimensional multi-layer theory,the Fourier harmonic method was used by expanding lateral primary current in periods to build the three-dimensional eletromagnetic field model of the linear induction motor.The traction was obtained by calculating the three-dimensional eletromagnetic fields.Results of calculation and of tests were compared.

关 键 词：直线感应电动机 分层理论 傅里叶谐波法 三维电磁场 牵引力 

分 类 号：TM359.4[电气工程—电机]