Transformer capacitance matrix computation using 3D boundary element method and adaptive cross approximation

被引：5
|
作者：
Drandic, Ana [1 ]
Trkulja, Bojan [1 ]
机构：
[1] Univ Zagreb, Fac Elect Engn & Comp, Dept Elect Engn Fundamentals & Measurements, Unska 3, Zagreb 10000, Croatia
来源：
INTERNATIONAL JOURNAL OF NUMERICAL MODELLING-ELECTRONIC NETWORKS DEVICES AND FIELDS | 2020年 / 33卷 / 05期
关键词：
adaptive cross approximation; boundary element methods; electric field; integral equations; ALGORITHM;
D O I：
10.1002/jnm.2669
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a solver based on a 3D boundary element method (BEM) is presented and verified on a transformer geometry. Using a triangular surface mesh of a winding, the unknown charge distribution is found from known potentials of surfaces using the integral equation approach and point matching. The capacitance matrix is calculated from known potentials in nodes of the system. The application of BEM and point-matching results in a fully populated system matrix. Therefore, a matrix reduction technique adaptive cross approximation (ACA) is employed in order to reduce the CPU time and memory requirements. Both the accuracy of the direct and the accuracy of the ACA approach are benchmarked against the results obtained using the professional finite element method (FEM)-based software.
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收藏
页数：9
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