| 高压直流输电线下合成电场的有限元快速算法 |
| |
| 引用本文： | 甄永赞,崔翔,卢铁兵,周象贤,罗兆楠.高压直流输电线下合成电场的有限元快速算法[J].中国电机工程学报,2011,31(18). |
| |
| 作者姓名： | 甄永赞 崔翔 卢铁兵 周象贤 罗兆楠 |
| |
| 作者单位： | 华北电力大学电气与电子工程学院,北京市昌平区,102206 |
| |
| 基金项目： | 国家自然科学基金重点项目(51037001); 中央高校基本科研业务费专项资金资助(09TG01)~~ |
| |
| 摘 要： | 直流输电线下合成电场计算方法中,上流有限元方法具有较强的适应能力,得到了广泛应用,但其计算效率尚有待提高.为获得较高的计算速度,该文根据上流有限元算法的特点,采用节点编号优化与Cholesky分解相结合的求解泊松方程的直接方法,反复求解泊松方程时较矩阵方程迭代算法有较大优势;采用合理的电荷密度更新策略,减少了迭代所需的收敛次数.这些方法综合应用,获得了较高的计算速度,1.5万节点的双极6分裂特高压直流输电线路合成电场算例,计算时间低于5 s.在算例中该算法显示出对电荷密度初始值具有较好的鲁棒性.
|
| 关 键 词： | 高压直流输电:合成电场 上流有限元法 快速计算 |
FEM High-speed Method for Calculating Total Electric Field Below HVDC Lines |
| |
| ZHEN Yongzan
,
CUI Xiang
,
LU Tiebing
,
ZHOU Xiangxian
,
LUO Zhaonan.FEM High-speed Method for Calculating Total Electric Field Below HVDC Lines[J].Proceedings of the CSEE,2011,31(18). |
| |
| Authors: | ZHEN Yongzan CUI Xiang LU Tiebing ZHOU Xiangxian LUO Zhaonan |
| |
| Affiliation: | ZHEN Yongzan,CUI Xiang,LU Tiebing,ZHOU Xiangxian,LUO Zhaonan(School of Electrical and Electronic Engineering,North China Electric Power University,Changping District,Beijing 102206,China) |
| |
| Abstract: | Among total electric field solution algorithms,upstream finite element method(FEM) has good adaptive capacity,and was widely used,but the calculation efficiency is needed to improve.In order to obtain high calculation speed,according to the particularity of the upstream FEM method,Poisson equation direct solution method together with node encoding optimization and Cholesky decomposition was adopted,and when solving Poisson equation repeatedly,the advantage is remarkable compared with matrix equation iterati... |
| |
| Keywords: | HVDC total electric field upstream finite element method(FEM) high-speed calculation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
