电器电场有限元精细求解器研究

doi:10.19595/j.cnki.1000-6753.tces.180822

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (26214 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Based on the self-developed finite element platform for electrical apparatus insulation, a novel mesh algorithm was realized by an improved regions division project. In this project, the boundary uniform dispersion and gradual discrete fusion methods were adopted, the minimum inner angle was taken as the maximum constraint, and the ripple model for mesh optimizing was proposed. Dynamic compressing storage structure and quick access mechanism were adopted in the solver to realize FEM precise computing by Hermite interpolation calculation method. All these measures contributed to deal with contradictions between mesh quality and computing efficiency. The simulation results of typical calculation cases show that the ratio of high-quality messes trending to regular triangle degree γ ≥0.8 is about 87%, and ratio of high-quality messes that minimum native angle of not less than 40° is about 96%. The proposed solver was used to calculate the arc quenching chamber of 550kV SF₆ circuit breaker and the typical case with analytic solutions. The comparison analysis shows that the calculation accuracy of the proposed algorithm is 290% and 150% higher than those of Lagrange interpolation calculation method and Ansys Solver respectively, and the average error and maximum error are both decreased.

Key words： Finite element method precise computing messes trending to regular triangle SF₆ arc quenching chamber Hermite method compression storage

Received: 11 May 2018 Published: 29 December 2018

PACS:

TM151.1

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180822 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I24/5789

[1] 葛国伟, 廖敏夫, 黄金强, 等. 双端口真空断路器配合特性仿真与试验[J]. 电工技术学报, 2016, 31(22): 57-65. Ge Guowei, Liao Minfu, Huang Jinqiang, et al. Simulation and experimental of matching characte- ristics of vacuum circuit breakers with double- break[J]. Transactions of China Electrotechnical Society, 2016, 31(22): 57-65.
[2] 刘晓明, 韩颖, 王尔智, 等. 基于多物理场耦合的高压SF₆断路器混沌电弧模型[J]. 电工技术学报, 2013, 28(1): 165-172. Liu Xiaoming, Han Ying, Wang Erzhi, et al. Chaos of arc model for SF₆ circuit breaker based on coupled multiple-physical field simulation[J]. Transactions of China Electrotechnical Society, 2013, 28(1): 165-172.
[3] Aiello G, Alfonzetti S, Borzi G, et al.GMRES solution of FEM-BEM global systems for electro- static problems without voltaged conductors[J]. IEEE Transactions on Magnetics, 2013, 49(5): 1701-1704.
[4] 袁建生, 鞠勇, 邹军, 等. 特高压直流输电线路屏蔽环三维有限元电场计算方法与策略[J]. 电工技术学报, 2015, 30(10): 7-13. Yuan Jiansheng, Ju Yong, Zou Jun, et al. Methodology and strategy on the calculation of 3D electric field on shielding ring of ring of UHV DC transmission lines[J]. Transactions of China Electro- technical Society, 2015, 30(10): 7-13.
[5] 甄永赞, 崔翔, 罗兆楠, 等. 直流输电线路三维合成电场计算的有限元方法[J]. 电工技术学报, 2011, 26(4): 153-160. Zhen Yongzan, Cui Xiang, Luo Zhaonan, et al. FEM for 3D total electric field calculation near HVDC lines[J]. Transactions of China Electrotechnical Society, 2011, 26(4): 153-160.
[6] 吕殿利, 韩婷彦, 孙于, 等. 特高压变压器线圈及其出线装置的电场计算与优化[J]. 电工技术学报, 2013, 28(2): 128-132. Lü Dianli, Han Tingyan, Sun Yu, et al. Electrical field calculation and optimization on coil and outlet device of ultra-high voltage transformer[J]. Transa- ctions of China Electrotechnical Society, 2013, 28(2): 128-132.
[7] 马爱清, 蔡川, 江秀臣, 等. GIS用SF₆高压断路器电场与电压分布计算软件[J]. 高电压技术, 2007, 33(6): 106-109. Ma Aiqing, Cai Chuan, Jiang Xiuchen, et al. Software package of electric filed intensity and potential distribution of SF₆ circuit breaker in GIS[J]. High Voltage Engineering, 2007, 33(6): 106-109.
[8] 冷雪, 刘晓明, 曹云东, 等. 气流流路对高压SF₆断路器介质强度混沌影响[J]. 电工技术学报, 2015, 30(6): 162-168. Leng Xue, Liu Xiaoming, Cao Yundong, et al. Effect of gas flow path on dielectric recovery chaos characteristics of high voltage SF₆ circuit breaker[J]. Transactions of China Electrotechnical Society, 2015, 30(6): 162-168.
[9] Pechrach K, Mebride J W, Weaver P M.Gas flow and composition effects on arc motion current limiting circuit breakers[C]//IEEE Holm Conference on Electrical Contacts, FL, USA, 2002:12-17.
[10] 邹基岩, 刘晓明, 于德恩, 等. 基于智能模块的高压直流真空断路器研究[J]. 电工技术学报, 2015, 30(13): 47-55. Zou Jiyan, Liu Xiaoming, Yu Deen, et al. Investigations on the HVDC vacuum circuit breaker based on intelligent models[J]. Transactions of China Electrotechnical Society, 2015, 30(13): 47-55.
[11] 李俐莹, 刘晓明. 能量分离剖口高压SF₆断路器灭弧室电场分析[J]. 电工技术学报, 2015, 30(13): 56-62.Li Liying, Liu Xiaoming. Analysis on the electrical field of high voltage SF₆ arc quenching chamber with energy separation nozzle[J]. Transactions of China Electrotechnical Society, 2015, 30(13): 56-62.
[12] 林莘, 夏亚龙, 刘卫东, 等. 电容器组投切用SF₆断路器介质恢复特性数值计算与试验研究[J]. 电工技术学报, 2015, 30(17): 161-168.Lin Xin, Xia Yalong, Liu Weidong, et al. The numerical computation and experiment research on dielectric recovery characteristics of SF₆ circuit breaker for switching capacitor bank[J]. Transactions of China Electrotechnical Society, 2015, 30(17): 161-168.
[13] 李荣华. 偏微分方程数值解法[M]. 北京: 高等教育出版社, 2010.
[14] 陈德智. 典型静电场场图的解析解[J]. 电气电子教学学报, 2012, 34(6): 102-106. Chen Dezhi. Analytical solution of field imaging for typical electrostatic[J]. Journal of IEEE, China: Science Press, 2012, 34(6): 102-106.