并行计算高压输电线路周围电场-电工技术学报.pdf

2009 年 7 月 电 工 技 术 学 报 Vol.24 No. 7 第 24 卷第 7 期 TRAN SACTION S OF CHINA ELECTROTECHNICAL SOCIETY Jul. 2009 并行计算高压输电线路周围电场 1 2 2 厉天威 阮江军 吴田 （1. 广西电力工业勘察设计研究院 南宁 530023 2. 武汉大学电气工程学院 武汉 430072） 摘要 实际工程应用中的大规模数值模拟需 借助于并行计算。介绍了适合并行计算的非 重叠区域分解法以及并行计算的实现。为了更精确地计算，建立了500kV 高压输电线路及其周 围房屋的三维模型，并把该模型划分为多个 （2 ～6）分区通过机群来分别实行并行求解。各分 区内形成的线性方程组通过Krylov 迭代求解器求解。结果表明通过并行计算能够精确地计算线 路附近的房屋周围各点电场强度，高压输电线路周围的房屋对外界电场有一定的屏蔽作用。 关键词：并行计算 区域分解法 高压输电线路 电场强度 中图分类号：TM 15 1 Parallel Computation of Electric Field Intensity Nearby High Voltage Transmission Lines L i Tianwei1 Ruan J iangj un2 Wu Tian2 （1. Guangxi Electric Power Industry Investigation Design and Research Institute Nanning 530023 China 2. Wuhan University Wuhan 430072 China ） Abstract There exists large-scale numerical simulation in engineering application which will turn to parallel computing. Non-overlapping domain decomposition method and parallel implementation are described. A three dimensional model of high voltage transmission lines with the house nearby is built and decomposed into 2～6 sub-domains for more accurate calculation . The linear equations formed separately on each sub-domain are solved by Krylov iterative solver on a cluster of computer . At last, the results show that parallel computation can accurately calculate the electric field around the house nearby the high voltage transmission lines, and the house is helpful of shielding the electric field. Keywords ：Parallel computation ，domain decomposition method ，high voltage transmission line ，electric field intensity