Forward Modeling of the Electromagnetic Field Due to a Line Source in Frequency Domain Using the Finite Element Method

2006 ◽  
Vol 49 (6) ◽  
pp. 1700-1709 ◽  
Author(s):  
Ruo WANG ◽  
Miao-Yue WANG ◽  
Qing-Yun DI
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Electromagnetic Field ◽  
Frequency Domain ◽  
Line Source ◽  
Forward Modeling ◽  
The Finite Element Method ◽  
Element Method

Calculation of Iron Loss in Large Hydro-Generator under Non-Load

2012 ◽  
Vol 433-440 ◽  
pp. 6096-6102
Author(s):  
Wei Li Li ◽  
Da Wei Liang ◽  
Yu Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Electromagnetic Field ◽  
Structural Characteristics ◽  
Iron Loss ◽  
The Finite Element Method ◽  
Physical Fields ◽  
New Generation ◽  
Generator Stator ◽  
Element Method

Taking 1000MW air-cooled hydro-generator as an example, the solving region and mathematical model are given. Based on the theories of electromagnetic field, the stator iron loss of large generator under non-load is studied. Considering the structural characteristics of generator, the iron loss was calculated by using magnetic circuit method and the finite element method, respectively. First, the iron loss in generator stator is calculated basing on the theory of electromagnetic field. Then the steady state and transient fields were used to calculate and analyze the 2D electromagnetic field by finite element method. And the exact value and distribution of iron loss are obtained. Last, we obtain some useful conclusions through comparing the iron loss calculated by the two methods above. That will provide a theoretical basis for further study of the physical fields of new generation giant hydro-generators.

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