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电网技术  2011 

特高压输电线路潜供电弧的物理模拟与建模综述

, PP. 7-12

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Abstract:

基于潜供电弧模拟试验的等价性,阐述了试验回路设计、引弧材料选取、短路电流值及其持续时间选择、风速风向模拟与调节等技术,总结了现有模拟试验中遇到的难题与不足之处,介绍了潜供电弧的现场试验的步骤与过程,特别是国内外特高压等级输电线路潜供电弧的试验成果,给出了现有潜供电弧熄灭时间的有关经验公式。分析了潜供电弧数学建模的研究现状,从简化的黑盒模型以及基于能量守恒的等离子体模型出发,比较分析了各种模型的优势与缺陷,指出了潜供电弧内在作用机制和等效模型研究中存在的关键难题。在上述基础上,结合新型输电方式的发展,分析了不同工况下潜供电弧的新特点,给出了潜供电弧试验与建模的参考性建议。

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