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基于GIS制造特征的电磁波仿真模型简化的研究 被引量:1

The Research of Gas Insulated Switchgear Model Simplification and Its Influence on Simulation Result Based on Manufacturing Feature
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摘要 以CAD特征建模方法为基础,建立了GIS电磁波传播仿真研究的逆向建模方法。应用三维电磁场数值计算有限元方法,在准确考虑GIS内部绝缘子和内导体制造特征的前提下,分析了一实际GIS内电磁波传播规律,获得了电磁波的泄漏参数的频率特性。研究了GIS内部绝缘子和内导体制造特征不同简化模型中泄漏参数的频率特性。将不同简化模型分析结果与精确模型的分析结果进行对比,分析了GIS制造特征的不同程度的简化对电磁波泄漏参数的频率特性、数值仿真计算时间和占用内存的影响。基于上述讨论,通过系统的比较,确定最优简化模型。由于特征建模和电磁分析模型简化中所遵循的几何构建过程是相似的,所以该简化思路在一定范围内具有通用性。 CAD manufacturing features based modeling method is used in studying propagation of EM-field in gas insulated switchgear(GIS).We take inverting mode to simplify the model of GIS step by step.A precision analysis model was established based on a practical 252kV GIS blueprint,and the frequency characteristic of EM leakage has been simulated using the finite element method.Different levels of simplification based on manufacturing features were carried out on this practical GIS.After systematic comparison,the influence of manufacturing feature simplification on computation of leakage of EM-wave was studied.The balance between the calculation accuracy and computing speed is considered.The results offer a scientific and systematic simplification method for calculating EM leakage of the GIS for further GIS design or simulation.Because the construction processes of feature modeling and EM model are the same,the presented method for modeling GIS has general purpose.
作者 卢斌先 孟准
出处 《电工技术学报》 EI CSCD 北大核心 2013年第1期119-125,共7页 Transactions of China Electrotechnical Society
基金 国家高技术研究发展计划(863计划)(2011AA05A12)资助项目
关键词 气体绝缘变电站(GIS) 电磁波传播规律 电磁波泄漏 模型简化 有限元计算 Gas insulated switchgear(GIS),leakage of EM-wave,propagation characteristics of EM,model simplification,finite element method(FEM)
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参考文献14

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二级参考文献31

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