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
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