| 水电站大坝接地电阻的有限元分析 |
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| 引用本文： | 李亚莎,李咸善,陈许卫.水电站大坝接地电阻的有限元分析[J].三峡大学学报(自然科学版),2009,31(4):49-51. |
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| 作者姓名： | 李亚莎 李咸善 陈许卫 |
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| 作者单位： | 三峡大学,电气信息学院,湖北,宜昌,443002 |
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| 摘 要： | 利用有限元方法通过分析水电站大坝的电流场，得到大坝的接地电阻．该方法对土壤结构和内部地网的铺设情况没有限制，可以分析任意结构接地装置的接地电阻．通过电流场的有限元分析，给出了大坝的电位分布，电场强度分布和电流密度分布．最后根据接地点的电位和电流计算了大坝的接地电阻．该电阻值为高土壤电阻率地区水电站的接地电阻计算提供了参考．
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| 关 键 词： | 电流场 有限元法 地网 接地电阻 |
Grounding Resistance Analysis of Hydropower Station Dam by Using FEM |
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| Li Yasha,Li Xianshan,Chen Xuwei.Grounding Resistance Analysis of Hydropower Station Dam by Using FEM[J].Journal of China Three Gorges University(Natural Sciences),2009,31(4):49-51. |
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| Authors: | Li Yasha Li Xianshan Chen Xuwei |
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| Institution: | (College of Electrical Engineering ＆ Information Science, China Three Gorges Univ. , Yichang, 443002 China) |
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| Abstract: | The electric current fields of hydropower station dam are analyzed by using finite element method; and the dam＇s grounding resistance is obtained. This method has no restriction on soil structure and grounding paving; therefore it can analyze grounding resistance of arbitrary structure grounding set. By using FEM to analyze dam＇s electric current field, the dam＇s voltage distribution, electric field intensity distribution, and electric current density distribution are given. Finally, according to the voltage and electric current of grounding place, the dam＇s grounding resistance is calculated. This grounding resistance is a reference for grounding resistance calculation for hydropower stations where the soils have high resistivity. |
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| Keywords: | electric current field finite element method ground grid grounding resistance |
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