| 摘要: |
| 大地网是风电场的主要组成部分，对地网接地阻抗这项性能参数定期的开展安全测试是风电场安全保障的重要工作。本文介绍了东源蝉子项风电场特殊的地理环境和大地网的敷设方式，研究分析了接地阻抗测试需要具备的条件和方法，选择了三极法、异频法、夹角法等相结合的接地阻抗测试方法进行实践分析，并归纳阐述了误差来源及消除误差的方法和注意事项，希望给予同类大型地网接地阻抗测试提供技术参考。 |
| 关键词: 大型地网 接地阻抗 |
| DOI： |
| 投稿时间：2018-05-04修订日期：2018-09-06 |
| 基金项目: |
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| A case study of grounding impedance test of wind farm earth network. |
| luzhihong,zhangshijin |
| (Guangdong heyuan city meteorological bureau.;Qiannan prefecture meteorological bureau, guizhou province.) |
| Abstract: |
| Geodetic network is the main component of wind farm, and it is an important work to carry out safety test on the ground network grounding impedance regularly. Dongyuan cicada subitems wind farms are introduced in this special geographical environment and the earth network installation, studied and analyzed the conditions and methods of the grounding impedance test requires, chose three pole method, the Angle of the different frequency method, the method of combining the grounding impedance test methods for practical analysis, and summarized in this paper, the error source and eliminate the error of the method and the matters needing attention, hoping for the same kind large ground network to provide technical reference grounding impedance test. |
| Key words: Large grounding impedance |
