摘要
针对高压电气设备电场逆问题的快速求解,将缩减基技术和有限元法有效结合,提出了一种用于快速求解电气设备电场逆问题的新方法,即缩减基有限元方法(reduced basis finite element method,RBFEM),分析了RBFEM的基本原理,并以气体绝缘开关设备(gas insulated switchgear,GIS)灭弧室的触头优化为例,详细介绍了基于RBFEM的快速优化算法的实现过程,包括建立数学模型、目标函数和设计变量的选定、给出优化策略、样本参数采样策略的选择、子域的分解以及样本参数N值的取值等关键问题。并对优化后的灭弧室触头形状利用ANSYS求解计算,得到的计算结果与RBFEM求得的计算结果相比误差为1.3%,可知RBFEM算法是有效的。
In order to fast solve the electric field inverse problem for high voltage electric apparatus, a new algorithm called reduced basis finite element method （RBFEM） was proposed in this paper. The reduced basis technology and the finite element method were integrated effectively. Firstly, the principle of RBFEM was analyzed. Secondly, as an optimization design example for gas insulated switchgear （GIS） arc-quenching chamber, the fast optimization algorithm implementation process based on RBFEM program, including modeling, setting objective function and design variable, optimization strategy given, sample strategy, sub-domain decomposition and Determination of sample parameters N, were introduced in detail. Finally, electric field distribution of the optimized contact shape was solved by using ANSYS and the solution was compared by using RBFEM. The computational result shows that the computational error is 1.3%, which verified the effectiveness of the proposed algorithm.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2012年第10期183-188,183-188,共6页
Proceedings of the CSEE
基金
国家自然科学基金项目(51007055)
上海市教育委员会科研创新项目(12YZ141)
上海市教育委员会重点学科建设项目(J51301)
上海高校选拔优秀青年教师科研专项基金(sdl10012)~~
关键词
缩减基技术
有限元法
电场逆问题
快速优化
灭弧室
reduced basis technology
finite elementmethod （FEM）
electric field inverse problem
fastoptimization
arc-quenching chamber
