Electromagnetic field computation of simple structures on printed circuit boards by the finite-element method

2006 ◽  
Vol 42 (4) ◽  
pp. 815-818 ◽  
Author(s):  
K. Hollaus ◽  
O. Biro ◽  
P. Caldera ◽  
G. Matzenauer ◽  
G. Paoli ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Electromagnetic Field ◽  
Printed Circuit Boards ◽  
Circuit Boards ◽  
The Finite Element Method ◽  
Printed Circuit ◽  
Field Computation ◽  
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.

A Gradient Weighted Finite Element Method (GW-FEM) for Static and Quasi-Static Electromagnetic Field Computation

2019 ◽  
Vol 17 (06) ◽  
pp. 1950017 ◽  
Author(s):  
Bingxian Tang ◽  
She Li ◽  
Xiangyang Cui
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Electromagnetic Field ◽  
Weak Form ◽  
Electromagnetic Problems ◽  
Tetrahedral Elements ◽  
Field Computation ◽  
Analytical Results ◽  
Element Method

This paper presented a Gradient Weighted Finite Element Method (GW-FEM) for solving electromagnetic problems. First, the analysis domain is discretized into a set of triangular or tetrahedral elements which are easy to automatically generate. Then, Gradient Weighted influence domains are further constructed by the center element with all the adjacent elements. The Galerkin Weak form is evaluated based on these influence domains. The GW-FEM is employed here for the solution of static and quasi-static electromagnetic problems by using linear triangular or tetrahedral elements. All the properties of GW-FEM are proved theoretically and analyzed in detail. Consistency between four benchmark results is obtained by GW-FEM and analytical results verify the accuracy, stability, and potential of this method. It turns out that GW-FEM possesses potentials in the applications of electromagnetic problems.

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