远海漂浮式海上风电平台用动态海缆的发展

Development of Dynamic Submarine Cable for Offshore Floating Wind Power Platforms

漂浮式海上风电平台用动态海缆作为浮式风机与静态海底电缆间的连接设备,是实现近远海风能资源开发、远距离输送以及规模化利用的关键装备。文中按照动态海缆系统的开发脉络,从动态海缆"干式"与"湿式"结构对比、抗水树绝缘材料开发、电缆附件相关技术、动态海缆失效因素、试验方法以及工程应用等方面,全面综述了动态海缆的技术发展现状。特别针对"湿式"结构动态海缆用抗水树绝缘材料的测试方法、动态海缆系统试验标准等热点问题进行了分析,提出了目前动态海缆开发中亟待解决的问题,包括研究抗水树绝缘材料长期老化行为及机理,开发更高电压等级抗水树绝缘材料,优化附件结构及制造工艺,探求电缆系统联调测试技术,完善国标海缆相关规范与标准等。该研究可为中国动态海缆设计、关键材料开发、装备制造工艺和试验技术完善等相关方面提供参考。

Dynamic submarine cable for floating offshore wind power platform,as the connection between floating turbine and static submarine cable,is the key equipment to achieve offshore wind energy resources development,longdistance transmission and renewable energy utilization. In this paper,the technical development status of the dynamic cable is comprehensively described in accordance with the development context of dynamic submarine cable system,and from such factors as structure comparison between“dry”and“wet”of dynamic submarine cable,development of water resistant tree insulation material,related technology of cable accessories,failure factor of dynamic submarine cable,test method as well as engineering application. In particular,Such hot issues as test method of water resistant tree insulation material of dynamic submarine cable with“wet”structure and the test standard of dynamic submarine cable system are analyzed. The problems needing to be solved in the development of dynamic submariner cable are proposed,which include studying the long-term aging mechanism of water resistant tree insulation material,developing water resistant tree insulating material for higher voltage,optimizing accessory structure and manufacturing process,exploring joint testing technology of whole dynamic cable system and improving relevant specification and standard of China National standard concerning the submarine cable. The study can provide a reference for the design of dynamic submarine cable,development of key material and improvement of equipment manufacturing process and test technology in China.