| 有限元–边界元耦合法在运动导体涡流场中的应用 |
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| 引用本文： | 刘守豹,阮江军,张宇,杜志叶,黄道春.有限元–边界元耦合法在运动导体涡流场中的应用[J].中国电机工程学报,2010(9). |
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| 作者姓名： | 刘守豹 阮江军 张宇 杜志叶 黄道春 |
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| 作者单位： | 武汉大学电气工程学院;江西省电力公司; |
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| 摘 要： | 基于A,φ-A法和库伦规范,推导了导体区域和非导体区域的有限元方程及自由空间的边界元方程,通过引入交界面条件,实现了将边界元矩阵等效为有限元矩阵求解的有限元-边界元耦合法(finite element and boundary element coupling method,FE-BECM)。将FE-BECM应用于TEAM-7问题的计算,验证了该方法处理开域涡流问题的有效性。当FE-BECM应用于运动导体涡流场(moving conductor eddy current,MCEC)问题时,用有限元离散源电流区域和运动部件,用边界元离散自由空间并关联相互独立的有限元区域。该方法克服了常规有限元法使用1套网格处理运动问题所遇到的麻烦。使用有限元-边界元耦合法对单级线圈炮问题进行了计算,验证了算法处理运动导体涡流场问题的有效性。
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| 关 键 词： | 有限元法 边界元法 有限元–边界元耦合法 运动导体涡流场 |
Application of Finite Element and Boundary Element Coupling Method in Moving Conductor Eddy Current Problem |
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| LIU Shou-bao,RUAN Jiang-jun,ZHANG Yu,DU Zhi-ye,HUANG Dao-chun.Application of Finite Element and Boundary Element Coupling Method in Moving Conductor Eddy Current Problem[J].Proceedings of the CSEE,2010(9). |
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| Authors: | LIU Shou-bao RUAN Jiang-jun ZHANG Yu DU Zhi-ye HUANG Dao-chun |
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| Affiliation: | LIU Shou-bao1,RUAN Jiang-jun1,ZHANG Yu2,DU Zhi-ye1,HUANG Dao-chun1 (1. School of Electrical Engineering,Wuhan University,Wuhan 430072,Hubei Province,China,2. Jiangxi Provincial Electric Power Company,Nanchang 330077,Jiangxi Province,China) |
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| Abstract: | Finite element governing equations of the conductor region and source current region were deduced based on magnetic vector potential/electric scalar potential formulations using the Coulomb gauge. Boundary element equations of free space were built on direct method. By introducing interface condition,the finite element and boundary element coupling method (FE-BECM) was realized in which boundary element matrix was equivalent to finite element matrix. In order to prove the validity of FE-BECM in eddy current... |
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| Keywords: | finite element method boundary element method finite element and boundary element coupling method moving conductor eddy current |
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