考虑出力相关性的海上风电接入系统固定成本分摊方法

A fixed cost allocation method for offshore wind power integration systems considering output power correlation

在海上风电规模化开发、集群化并网的背景下,如何回收海上风电接入系统的输电成本,公平合理地向各风电场分摊已成为目前海上风电行业亟待解决的问题。针对该问题,提出了一种考虑风电出力相关性的海上风电接入系统固定成本分摊方法。首先,利用藤Copula函数构建多个海上风电场的出力相关性模型,同时假定系统负荷需求模型服从正态分布,发电机服从0-1概率分布;然后,结合蒙特卡洛抽样和顺流概率潮流追踪法计算各海上风电场接入系统的固定成本分摊费用;最后,通过算例仿真分析,验证了所提方法的合理性和有效性。

In the context of large-scale development and clustering integration of offshore wind power,fairly and equitably recovering the transmission costs of offshore wind power integration systems and allocating them to wind farms has become a pressing issue in the offshore wind power industry.To address this challenge,a method for allocating fixed costs in offshore wind power integration systems,taking into account the correlation of wind power output,is proposed.Firstly,the Vine copula function is employed to construct a correlation model for the output of multiple offshore wind farms.Additionally,it is assumed that the system's load demand model follows a normal distribution,and the generators follow a [0,1] probability distribution.Then,using a combination of Monte Carlo sampling and the probability flow power flow tracking method,the fixed cost allocation for each integrated offshore wind farm is calculated.Finally,through case simulation analysis,the reasonableness and effectiveness of the proposed method are validated.