Application of Magnet in Design of Excitation Synchronous Motor

doi:10.11985/2015.12.007

Abstract

Abstract:

In order to provide design basis of the excitation synchronous motor, a new method based on finite element method (FEM) is proposed to analyze its electrical properties in this paper. First step is to select the representative excitation synchronous motor as studied object, to build a convex three- phase-four-polar 3D model, to set the material properties, to generate the corresponding coils and to set the initial position of the motor. Second step is to solve by the adaptive grid subdivision and 2D transient solver. Last step is to post-process data by Matlab to analyze the relationship between power frequency and motor speed, copper loss, iron loss, eddy current loss and magnetic field distribution, which provides the theoretic basic for motor designers.

Key words: Magnet, synchronous motor, finite element method, Matlab

CLC Number:

TM302

Ping Zhang,Tao Yan,Hongwei Zhang,Ting Li. Application of Magnet in Design of Excitation Synchronous Motor[J]. Journal of Electrical Engineering, 2015, 10(12): 38-43.

Figures/Tables 12

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参数	数值	参数	数值
额定电压/V	220	频率/Hz	50
定子内径/cm	3.9	定子外径/cm	6.4
定子极对数	2	定子槽数	12
转子直径/cm	7.4	电机轴长/cm	5
电机轴半径/cm	1.5

f /Hz	t /ms
f /Hz	20	40	60	80
35	4.250	3.934	3.967	4.126
40	3.649	3.747	3.586	3.802
45	3.250	3.527	3.683	3.516
50	3.204	3.456	3.532	3.394
55	3.015	3.153	3.448	3.205

f/Hz	35	40	45	50	55
Bm/T	4.991	4.677	4.494	4.444	4.367
铁损/kW	2.533	2.646	2.847	3.193	3.935
涡流损耗/kW	30.51	34.99	40.90	49.37	65.04