阴极保护在海上光伏钢结构桩基的应用

doi:10.6040/j.issn.1672-3961.0.2025.160

摘要/Abstract

摘要： 针对海洋侵蚀性环境导致海上光伏桩基腐蚀与结构损伤,威胁电站安全运行并增加运维成本的问题,采用外加电流阴极保护(impressed current cathodic protection, ICCP)方法对海上光伏桩基进行腐蚀防护。以中国首座固定桩基式海上光伏电站(HG30 项目)为研究对象,通过COMSOL Multiphysics构建化学场-电场耦合仿真模型,分析辅助阳极数量、布置位置对电位分布的影响;在HG30项目典型分区布置电源装置、辅助阳极与参比电极,开展现场馈电试验,验证不同输出电流下的防护效果。试验结果表明,当在水下5 m处配置1个辅助阳极、15 m处配置1个参比电极时,在输出电流为4~5 A条件下,外加电流阴极保护系统可对200 m范围内的桩基进行良好的腐蚀防护。

关键词: 海上光伏, 外加电流阴极保护, 腐蚀防护, 仿真模型, 馈电试验

Abstract: To address the issue of corrosion and structural damage to offshore photovoltaic pile foundations caused by aggressive marine environments, which threatened the operational safety of power plants and increased maintenance costs, the impressed current cathodic protection(ICCP)method was employed for corrosion protection. The investigation utilized the first fixed-pile-based offshore photovoltaic power station in China(project HG30). A coupled chemical field-electric field simulation model was developed using COMSOL Multiphysics to analyze the influence of the number and arrangement of auxiliary anodes on potential distribution. Field current feeding tests were conducted in typical zones of the project HG30, where power supply units, auxiliary anodes, and reference electrodes were deployed to validate the protective effectiveness under varying output currents. The results indicated that with one auxiliary anode installed at 5 m below water level and one reference electrode at 15 m depth, the ICCP system provided effective corrosion protection for pile foundations within a 200 m radius at the output current of 4-5 A.

Key words: offshore photovoltaic, impressed current cathodic protection, corrosion protection, simulation model, current feeding test

中图分类号:

U177

王峰,林斌. 阴极保护在海上光伏钢结构桩基的应用[J]. 山东大学学报 (工学版), 2026, 56(1): 142-148.

WANG Feng, LIN Bin. Application of cathodic protection system for offshore photovoltaic pile foundation[J]. Journal of Shandong University(Engineering Science), 2026, 56(1): 142-148.

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