| 摘要: |
| 目前，中国正在大力推行风力发电，风电设施与部分地电阻率台站的测区不可避免地出现重叠，这对地电观测环境保护提出了新的要求和挑战。本文针对临泽观测站风力发电设备检修期间的地电阻率观测数据变化，结合调查和落实，确认此次数据变化为风力发电设备检修的架空导线两端接地而引起，并进行机理分析。同时根据资料建立三维有限元模型，分析此类人为环境因素对在不同距离、不同观测装置的地电阻率观测的影响，数值模拟结果显示：风电设施与地电阻率测区合理的距离可以规避此类干扰，且增加地电阻率观测装置的埋设深度可以抑制此类干扰。在未来地电观测系统建设中，本文的研究结果可为在风力发电区域台站的选址、观测装置布设方式的选择、以及分析风电设备检修对观测的影响及数据异常跟踪分析提供具体参考。 |
| 关键词: 地电阻率 风力发电 设备检修 架空导线 |
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| Analysis of geoelectric resistivity change caused by maintenance of wind power generation equipment |
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gaoxiwei
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Gaoyou general Station of huai’an Center Station
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| Abstract: |
| China is vigorously promoting wind power, and wind power facilities inevitably overlap with the observation area of some geoelectric resistivity, which puts forward new requirements and challenges for environmental protection of geoelectric observation. In this paper, according to the change of ground resistivity observation data during the maintenance of wind power generation equipment at Linze station, combined with the abnormal implementation work and investigation, it is confirmed that the data change is caused by grounding of both ends of overhead conductor for wind power equipment maintenance, and the mechanism is analyzed.The three-dimensional finite element model is established according to the data, To study the influence of such interference on geoelectric resistivity at different distances and different observation devices. The results show that: the effective distance to avoid this kind of interference is given by numerical simulation;Increasing the buried depth of the electrode can suppress this kind of interference. In the future construction of geoelectric observation system, the research results of this paper can provide specific reference for the site selection of stations in wind power generation areas, the selection of layout methods of observation devices, and the analysis of the influence of wind power equipment maintenance on observation and the tracking analysis of data anomalies. |
| Key words: Geoelectric resistivity Wind power Equipment maintenance Overhead conductor |
