基于工程损耗模型的棱边有限元与节点有限元的算法比较  

Comparison of Edge Elements and Nodal Elements for Computing Engineering-Oriented Loss Model

作　　者：张秀敏[1] 苑津莎[2] 徐永生[1] 程志光[3] 

机构地区：[1]华北电力大学电力系,071003 [2]华北电力大学电子与通信工程系,071003 [3]保定天威集团,071051

出　　处：《电工技术学报》2003年第3期41-47,共7页Transactions of China Electrotechnical Society

摘　　要：针对目前国际计算电磁学界关于棱边有限元法优劣的争论 ,本文编制了以A为变量、分别用节点元、Whitney型和Mur型棱单元插值的有限元程序 ,通过用此程序计算源于工程涡流损耗的国际TEAM 2 1问题及 2 1 0模型 ,比较了棱单元与节点元法的计算精度、占用内存和用PICCG法迭代的收敛情况 ,讨论了两种单元各自的优劣。Considering the argument against the edge elements in the field of computing electromagnetics,a finite element software with A as variables is developed,which is interpolated by nodal elements,Whitney type and Mur type edge elements respectively.The Engineering-Oriented loss model(TEAM 21 Problem)and its extension version model 21 0 are computed,and the computational accuracy,memory requirement and the convergence characteristic of PICCG method for them are compared.The advantage and disadvantages of both nodal and edge elements are discussed.It is shown that edge elements and modal elements in computing engineering loss problem have strong and weak points respectively.

关 键 词：棱单元 节点元 计算电磁学 

分 类 号：TM154.11[电气工程—电工理论与新技术]