Enhanced PEEC Model Based on Automatic Voronoi Decomposition of Triangular Meshes
Enhanced PEEC Model Based on Automatic Voronoi Decomposition of Triangular Meshes
复制标题
基于三角网格自动Voronoi分解的增强PEEC模型
DOI：
10.1109/temc.2019.2956586
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发表时间：
2020
影响因子：
2.1
通讯作者：
R. Jobava
中科院分区：
文献类型：
--
作者：
G. Gabriadze;G. Chiqovani;A. Gheonjian;I. Oganezova;A. Demurov;Z. Kutchadze;X. Bunlon;Fatima Ajebbar;R. Jobava
提出了一种基于三角网格Voronoi分解的增强部分单元等效电路（PEEC）模型。一个复杂的几何图形由许多表面三角形精确地表示，同时保持相应等效电路中元件的数量远远少于三角形的数量。为此，使用Voronoi的算法将三角形几何结构自动分解为表面分区。这些分区描述电容单元，而电感元件设置在所有相邻分区对之间。电感(L)矩阵和电容(C)矩阵的计算采用基于准静态电磁力全波矩量法（MoM）的求解器独立完成。为了得到三角形上的电流和电荷分布，将LC评价时的MoM结果与修正节点分析的结果相结合。我们根据标准PEEC和MoM结果以及测量数据验证了我们的方法。然后，我们用我们的方法模拟了一个真实的汽车LED刹车灯模块的传导发射。
We present an enhanced partial element equivalent circuit (PEEC) model based on Voronoi decomposition of triangular meshes. A complex geometry is accurately represented by many surface triangles, while keeping the number of elements in the corresponding equivalent circuit far less than the number of triangles. To do this, the triangular geometry is automatically decomposed into surface partitions using Voronoi's algorithm. These partitions describe capacitance cells, while inductance elements are set between all neighboring partition pairs. The inductance (L) and capacitance (C) matrix calculations are done independently using solvers based on quasi-static electric and magnetic full-wave method of moments (MoM). To get the current and charge distribution over the triangles, the MoM results during LC evaluation are combined with the results of modified nodal analysis. We validated our method against the standard PEEC and MoM results as well as measured data. Then, we used our method to simulate conducted emission for a real automotive LED brake-light module.