海上风电场海缆接地方式安全性分析  

Safety Analysis on the Cable Grounding Mode for a Offshore Wind Farm

作　　者：高登飞 于波 杨永焱 章程[3] 刘亚迪 GAO Dengfei;YU Bo;YANG Yongyan;ZHANG Cheng;LIU Yadi(Hebei Jiantou Offshore Wind Power Co.,Ltd.,Hebei Tangshan 063016,China;State Grid Beijing Power Cable Company,Beijing 100027,China;Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]河北建投海上风电有限公司,河北唐山063016 [2]国网北京电缆公司,北京100027 [3]中国科学院电工研究所,北京100190

出　　处：《高压电器》2022年第12期61-68,共8页High Voltage Apparatus

摘　　要：海上风电场海缆登陆方式常常受到海岸线保护的限制,其电缆接地方式设计无法完全按照GB/T51190—2016《海底电力电缆输电工程设计规范》,导致系统运行风险等级无法量化。基于此,文中建立电缆接地仿真模型,研究了不同工况下电缆金属套感应电压及接地电流的稳态特性,并对当前电缆接地方式进行安全性评估。研究结果论证了当前接地方式的可行性,强调了登陆点处海缆、水缆金属套电气连接的重要性。Subject to shoreline protection,the design of grounding mode of land-sea cable cannot be completely in accordance with the code for design of submarine power cable transmission engineering(GB/T 51190—2016).As a result,the risk level of system operation cannot be quantified.Here we established a grounding model for the land-sea cable and investigated the induced voltage and grounding current of cable sheath. The results presented in this work demonstrated the flexible of the grounding mode of land-sea cable,and emphasized the importance of the electrical connection between the sheath of sea cable and water cable.

关 键 词：海上风电场 电缆接地方式 电压电流特性 安全性评估 数值模拟 

分 类 号：TM862[电气工程—高电压与绝缘技术] TM614