海上风电多风场集中送出方式优选方法  

Optimization Method for Centralized Transmission of Offshore Wind Power from Multiple Wind Farms

作　　者：刘生 LIU Sheng(China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd.,Guangzhou 510663,Guangdong,China)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广东广州510663

出　　处：《南方能源建设》2025年第1期100-108,共9页Southern Energy Construction

基　　金：智能电网国家科技重大专项项目(2024ZD0802600);2023年中国能源建设股份有限公司科技创新专项活动“柔性直流输电原创技术策源地”(ER11321W)。

摘　　要：[目的]传统海上风电送出研究对象为单一风电场点对点向陆上送电,存在局限性,且采用的经济评价方法仅考虑初期投资,系统性和科学性不足。针对当前海上风电连片开发的应用场景,文章提出一种多风场集中送出方式优选方法,指导确定最优送出方案。[方法]技术性方面,根据工作原理,海上风电送出包括交流、直流和交直流混合3种类型,每种类型有各自的特点和适用范围。经济性方面,除了初期投资,还应考虑设备使用年限内的损耗、维护、停运损失和海域租赁等运行过程中产生的费用,其中对称单极系统和对称双极系统根据系统特点应采用不同的计算方法。[结果]针对典型案例提供了6种集中送出方案,涵盖了目前交流送出和直流送出的全部主流技术方案。通过对不同方案的技术性和经济性进行对比,选择最优送出方案。[结论]我国海上风电目前正由小规模示范应用走向大规模连片集中开发。文章提出的海上风电多风场集中送出优选方法深度契合未来深远海多片区大容量海上风电集中送出的市场需求,具有很高的指导价值。[Objective]The traditional research object of offshore wind power transmission is the point-to-point onshore transmission of electricity from a single wind farm,which has limitations,and the economic evaluation method used only considers initial investment,which is not systematic and scientific enough.In response to the current application scenarios of offshore wind power integrated development,this article proposes a method for optimizing the centralized transmission mode of multiple wind farms,guiding the determination of the optimal transmission scheme.[Method]Technically,according to the working principle,offshore wind power transmission includes three types:AC,DC,and AC DC hybrid,each with its own characteristics and scope of application.In terms of economy,in addition to initial investment,consideration should also be given to the losses,maintenance,shutdown losses,and costs incurred during the operation of the equipment over its service life,as well as the costs incurred during sea area leasing.Symmetric monopole systems and symmetrical bipolar systems should adopt different calculation methods based on system characteristics.[Result]This article provides six centralized transmission solutions for typical cases,covering all mainstream technical solutions for current AC and DC transmission.Select the optimal delivery plan by comparing the technical and economic aspects of different plans.[Conclusion]China's offshore wind power is currently moving from small-scale demonstration applications to large-scale integrated development.The optimal method for centralized transmission of offshore wind power from multiple wind farms proposed in this article is deeply in line with the market demand for large-scale centralized transmission of offshore wind power in the future,and has high guiding value.

关 键 词：海上风电 多风场集中送出 柔性直流 全生命周期 对称单极 对称双极 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程] TM72[电气工程—电力系统及自动化] F426[经济管理—产业经济]