基于LCC法的海上新能源送出系统冗余配置研究

Research on Redundant Configuration of Offshore New Energy Delivery System Based on LCC Method

海上新能源场区建设投资大,尤其是送出系统部分,还存在设备故障率高及运维不变等问题。本文提出了几种不同送出系统冗余配置及海缆选型方案,以寻求建设运营成本与发电可靠性之间的平衡。最后以江苏盐城某海上风电场为计算案例,基于LCC理论建立送出海缆与海上升压站主变压器的成本数学模型,并对模型进行分解计算。对比各方案中送出系统的全寿命周期成本,并对关健因素进行灵敏度分析,得出最优配置方案,为海上风电送出系统冗余配置方案提供了选择依据。

Offshore new energy field construction investment is large,especially in the delivery system,there are also high equipment failure rate and unchanged operation and maintenance problems.In order to strike a balance between construction and operation cost and power generation reliability,several redundant configurations and submarine cable selection schemes for different delivery systems are proposed in this paper.Finally,taking an offshore wind farm in Yancheng,Jiangsu Province as a case,the cost mathematical model of the main transformer of the submarine cable and the offshore booster station is established based on the LCC theory,and the model is decomposed and calculated.By comparing the whole life cycle cost of each scheme and sensitivity analysis of key factors,the optimal configuration scheme is obtained,which provides a basis for selecting redundant configuration scheme of offshore wind power transmission system.