| 应用可控源音频大地电磁法的土壤电阻率测量 |
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| 引用本文： | 苏杰,吴广宁,曹晓斌,马御棠,李瑞芳,周炜明. 应用可控源音频大地电磁法的土壤电阻率测量[J]. 电网技术, 2011, 0(1): 141-145 |
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| 作者姓名： | 苏杰 吴广宁 曹晓斌 马御棠 李瑞芳 周炜明 |
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| 作者单位： | 西南交通大学电气工程学院;西南电力设计院; |
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| 摘 要： | 采用准确测量土壤电阻率设计的地网可使设计误差达到最小,对电力系统的可靠运行具有重要意义。可控源音频大地电磁法(controlled source audio-frequency magneto-telluric,CSAMT)是一种成功应用于煤、油、气等资源探测的物探技术。基于CSAMT法及Schlumberger法基本原理建立了测量土壤电阻率的模型,在均匀半空间条件下,利用接地分析软件CDEGS实现了土壤电阻率的仿真测量。结果表明,CSAMT法所测土壤电阻率在很宽一段频率范围内基本保持不变,且与真实土壤电阻率的误差很小,表明所测土壤为均匀土壤;而Schlumberger法所测结果与真实值误差较大,且在频率较高时所得结果完全不可信,证实了CSAMT法测量土壤电阻率的高准确性。
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| 关 键 词： | 土壤电阻率 地网 可控源音频大地电磁法 Schlumberger测量法 |
Analysis on Soil Resistivity Measurement Based on Controlled Source Audio-frequency Magneto-telluric |
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| SU Jie,WU Guangning,CAO Xiaobin,MA Yutang,LI Ruifang,ZHOU Weiming. Analysis on Soil Resistivity Measurement Based on Controlled Source Audio-frequency Magneto-telluric[J]. Power System Technology, 2011, 0(1): 141-145 |
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| Authors: | SU Jie WU Guangning CAO Xiaobin MA Yutang LI Ruifang ZHOU Weiming |
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| Affiliation: | SU Jie1,WU Guangning1,CAO Xiaobin1,MA Yutang1,LI Ruifang1,ZHOU Weiming2(1.School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan Province,China,2.Southwest Electric Power Design Institute,Chengdu 610021,China) |
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| Abstract: | Grounding grid that is designed based on accurately measured soil resistivity can make the design error minimum,and it is significant to reliable operation of power system.Controlled source audio-frequency magneto-telluric(CSAMT) is a geophysical technology that has been successfully applied to explore the resources such as coal,petroleum and natural gas.Based on basic priciple of CSAMT method and Schlumberger measurement method a soil resistivity measurement model is built.Under the condition of homogeneou... |
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| Keywords: | soil resistivity grounding grid controlled source audio-frequency magneto-telluric(CSAMT) Schlumberger measurement method |
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