COMPUTATION OF LOAD PERFORMANCE AND OTHER PARAMETERS OF EXTRA HIGH-SPEED MODIFIED LUNDELL ALTERNATORS FROM 3D-FE MAGNETIC-FIELD SOLUTIONS

被引:27
作者
WANG, R
DEMERDASH, NA
BRAUER, JR
NEHL, TW
NILSSON, NE
HOOLE, SRH
机构
[1] CLARKSON UNIV,DEPT ELECT & COMP ENGN,POTSDAM,NY 13676
[2] MACNEAL SCHWENDLER CORP,MILWAUKEE,WI
[3] GM CORP,SERV,WARREN,MI 48090
[4] HARVEY MUDD COLL,CLAREMONT,CA 91711
[5] OHIO EDISON CO,AKRON,OH
基金
美国国家航空航天局;
关键词
3-DIMENSIONAL FINITE ELEMENTS; 3-DIMENSIONAL MAGNETIC VECTOR AND SCALAR POTENTIALS; MODIFIED LUNDELL ALTERNATORS; LOAD CHARACTERISTICS;
D O I
10.1109/60.136230
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The combined magnetic vector potential - magnetic scalar potential method of computation of 3D magnetic fields by finite elements, introduced in a companion paper, in combination with state modeling in the abc-frame of reference, are used for global 3D magnetic field analysis and machine performance computation under rated load and overload condition in an example 14.3 kVA modified Lundell alternator. The results vividly demonstrate the 3D nature of the magnetic field in such machines, and show how this model can be used as an excellent tool for computation of flux density distributions, armature current and voltage waveform profiles and harmonic contents, as well as computation of torque profiles and ripples. Use of the model in gaining insight into locations of regions in the magnetic circuit with heavy degrees of saturation is demonstrated. Experimental results which correlate well with the simulations of the load case are given.
引用
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页码:342 / 352
页数:11
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