550 kV斷路器滅弧室內電場的多重網格-有限元法分析
薛紅濤
（河南平高電氣股份有限公司，河南 平頂山 467001）
摘 要：針對有限元法進行多介質電場計算過程中求解效率與場域離散精度矛盾問題，結合有限元（FEM）和自適應多重網格（AMG）兩種技術，提出多介質電場的自適應多重網格- 有限元法（AMG-FEM）求解技術，并在粗細網格之間轉換時引入迭代自適應控制轉換技術，解決了計算區域參數分布不規律性，避免了網格整體多層細化計算工作量大的問題。通過對550 kV 斷路器滅弧室電場數值計算，證明了AMGFEM算法的高精度、高效率以及良好適應性，得到了滅弧室內不同開距下的電場分布。
關鍵詞：斷路器；滅弧室；多重網格；有限元法
中圖分類號：TM561.5 文獻標識碼：A 文章編號：1007-3175(2018)08-0030-04
Multiple Grid-Finite Element Method Analysis of Electric Field Inside 550 kV Circuit-Breaker Arc Extinguish Chamber
XUE Hong-tao
（Henan Pinggao Electric Co., Ltd, Pingdingshan 467001, China）
Abstract: Aiming at the contradictory issue between solution efficiency and field domain disperse precision happening during the process of multimedium electric field calculation of finite element method (FEM), and combining the two technologies of FEM and adaptive multiple grid (AMG), this paper proposed the multimedium electric field AMG-FEM solution technology and introduced the iteration self-adaptation control transform technology to solve the irregularity problem of computational domain parameter distribution, avoiding the computational effort problem of grid entirety multilayer refining. The electric field calculation of 500 kV circuit-breaker arc extinguish chamber verifies that the AMG-FEM algorithm has high precision and efficiency with good adaptation so as to obtain the electric field distribution of different opening distance inside arc extinguish chamber.
Key words: circuit breaker; arc extinguish chamber; multiple grid; finite element method
參考文獻
[1] 賈志杰，甘德剛，李晶.±500 k V氣體絕緣金屬封閉輸電線路絕緣尺寸設計[J]. 電網技術，2011，35(8)：192-196.
[2] 施衛華，阮寧暉，王進. 高壓開關電器的發展及應用[J]. 昆明冶金高等專科學校學報，2005，21(5)：45-51.
[3] 范鎮南，張德威，陳顯坡，等. 用電磁場和流場模型計算GIS母線損耗發熱[J]. 高電壓技術，2009，35(12)：3016-3021.
[4] DAI O, OGATA H, AMANO K.A method of numerical conformal mapping of curved slit domains by the charge simulation method[J]. Journal of Computational and Applied Mathematics, 2003，15(1/2)：441-450.
[5] TAKUMA T, KAWAMOTO T.Numerical calculation of electric fields with a floating conductor[J]. IEEE Transactions on Dielectrics and Electrical Insulation，1997，4(2)：177-181.
[6] LIU X M, CAO Y D, WANG E Z. Numerical simulation of electric field with open boundary using intelligent optimum charge simulation method[J]. IEEE Transactions on Magnetics，2006，42(4)：1159-1162.
[7] CHAKRAVORTI S, STEINBIGLER H.Boundary Element Studies on Insulator Shape and Electric Field Around HV Insulators with or Without Pollution[J]. IEEE Transactions on Dielectrics and Electrical Insulation，2000，7(2)：169-176.
[8] 周浩，倪光正. 多重網格法及其在靜態電磁場數值分析中的應用[J]. 中國電機工程學報，1990，10(5)：22-28.
[9] 朱傳運，石治中，崔江紅. 采用改進波前自動生成算法的電器電場計算[J]. 電工電氣，2014(6)：27-30.
[10] 呂宏強. 非結構多重網格法流場數值模擬[D]. 南京：南京航空航天大學，2002.
