Design of anti-corrosion, resistance reduction, and intelligent detection lightning protectiongrounding network scheme for a certain wind farm booster station and site area
某风电场升压站及场区防腐降阻及智能检测防雷接地网方案设计

摘要

风电产业是可循环新能源产业，大力发展风电产业，对调整能源结构、推进能源生产和消费革命、促进生态文明建设具有重要意义。风电场多建于风资源较为丰富的山脊、丘陵、戈壁荒漠及沿海地带，特殊的地理环境导致生产及辅助设备极易遭受雷击的侵害。风场所处位置的土壤电阻率都较高、腐蚀性较强，接地网设计难度大，施工位置狭小，现有的接地材料运输困难，且接地网属于隐蔽工程，后期维护困难，修缮成本高。解决高电阻率、腐蚀性强地质环境下接地设计施工问题迫在眉睫。某风电项目位于内蒙古自治区库布齐沙漠边缘，建设容机为200 MW，地质以风积细砂为主，电阻率较高，每个机位平均近似值300—600Ω.m，为黄土电阻率2-4倍，且具有一定腐蚀性，本设计方案通过对本项目接地布置、接地材料防腐性能及降阻性能的研究，能够有效提高风力发电系统的防雷、接地系统的安全性、可靠性、和经济性，为今后类似项目的施工提供技术参考和依据。

Abstract

The wind power industry is a new renewable energy industry, and vigorously developing the wind power industry is of great significance to adjusting the energy structure, promoting the revolution of energy production and consumption, and promoting the construction of ecological civilization. Wind farms are mostly built in the ridges, hills, Gobi desert and coastal areas with abundant wind resources, and the special geographical environment makes the production and auxiliary equipment vulnerable to lightning strikes. The soil resistivity of the wind site is high and the corrosion is strong, the design of grounding network is difficult, the construction location is small, the existing grounding materials are difficult to transport, and the grounding network is a hidden project, which is difficult to maintain in the later stage and the repair cost is high. It is urgent to solve the problem of grounding design and construction in high resistivity and corrosive geological environment. A wind power project is located on the edge of the Kubuqi Desert in Inner Mongolia Autonomous Region, with a construction capacity of 200 MW. The geology is mainly composed of windblown fine sand, and the electrical resistivity is relatively high. The average approximate value of each location is 300-600 Ω. m, which is 2-4 times the electrical resistivity of loess and has a certain degree of corrosiveness. This design scheme can effectively improve the lightning protection and resistance reduction performance of the wind power generation system by studying the grounding layout, anti-corrosion performance of grounding materials, and resistance reduction performance of the project The safety, reliability, and economy of the grounding system provide technical reference and basis for the construction of similar projects in the future.