无刷直流永磁屏蔽电机参数计算  

Parameters Computation for Brushless DC PM Canned Motor

作　　者：倪有源[1,2] 葛木明 黄亚[1] 何强[1] 

机构地区：[1]合肥工业大学,合肥230009 [2]工业节电与电能质量控制省级协同创新中心,合肥230601

出　　处：《微特电机》2016年第5期6-9,共4页Small & Special Electrical Machines

基　　金：安徽省自然科学基金项目(1508085ME89)

摘　　要：屏蔽电机主要用于各类液体循环系统中。由于无刷直流永磁屏蔽电机的端部漏感较大,二维方法无法精确计算电机性能,需要用三维数值方法计算。采用三维瞬态有限元方法分析了一台无刷直流永磁屏蔽电机的电磁场,并运用能量摄动法计算了不同转子位置角时电机定子绕组的自感和互感值,且对其进行了傅里叶分析。在此基础上,采用场路耦合的方法,计算了该电机在额定工况下的各种损耗、电磁转矩和效率等性能参数。Canned motors are widely used in all kinds of liquid circulation systems. Due to the large end leakage inductance of the brushless DC permanent magnet( PM) canned motor,the traditional two dimensional( 2D) method can't be used to compute its performance accurately,so a three dimensional( 3D) numerical method is required. The electromagnetic fields of the motor were analyzed using a 3D transient finite element method( FEM). Besides,using a energy perturbation method,the self- inductance and mutual- inductance values of the stator windings were computed in terms of different rotor positions. On this basis,the performance parameters of the motor under the rated condition were calculated using a field- circuit coupled method.

关 键 词：无刷直流 永磁屏蔽电机 三维瞬态有限元法 场路耦合法 

分 类 号：TM33[电气工程—电机]