海上风电场集电线路拓扑及海缆截面优化  

Optimization of collector line topology and marine cable cross-section in offshore wind farms

作　　者：申鼎发 刘虹 SHEN Dingfa;LIU Hong(Shanghai Investigation and Design Research Institute Co.,Ltd,Shanghai 200434)

机构地区：[1]上海勘测设计研究院有限公司,上海200434

出　　处：《电气技术》2024年第10期21-29,共9页Electrical Engineering

摘　　要：依据风速分布和风力发电机出力特性,推导出风力发电机出力概率密度函数,本文提出集电线路海缆三状态可靠性模型,以及链形网络和准环形网络的期望电能损失计算方法,在此基础上建立集电系统拓扑及海缆截面优化模型。通过案例分析可知,集电线路拓扑结构受风力发电机和升压站布置、海缆单价、上网电价和资金折现率影响。对于大型海上风电场,优化后的集电线路拓扑一般为链形结构和准环形结构的组合。本文方法可为大型海上风电场集电线路优化设计提供参考。According to the wind speed distribution and the output characteristics of the wind turbine,the output probability density function of the wind turbine is derived.The three-state reliability model of marine cable is proposed,and the calculation method of expected energy not supplied of chain network and quasi-ring network is proposed.On this basis,the optimization model of collector system topology and cross-section of marine cable is established.Case analysis shows that the topology of the collector line is affected by the layout of wind turbines and booster stations,the unit price of marine cables,the electricity on-grid price and the discount rate of capital.For large offshore wind farms,the optimized collector line topology is generally a combination of chain structure and quasi-ring structure.The optimization method provided in this paper can provide reference for the optimization design of collection lines in large offshore wind farms.

关 键 词：集电线路 链形结构 准环形结构 集电线路拓扑优化 海缆截面优化 

分 类 号：TM614[电气工程—电力系统及自动化]