Optimal Configuration of Energy Storage for Wind Farm Black-start Based on Asymmetric Copula Function

被引：0

作者：

Liu W. ^{[1
]}

Liu Y. ^{[1
]}

机构：

[1] Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education, Shandong University, Jinan

来源：

Liu, Yutian (liuyt@sdu.edu.cn) | 1600年 / Automation of Electric Power Systems Press卷 / 44期

基金：

国家重点研发计划;

关键词：

Black-start; Copula theory; Correlation analysis; Energy storage configuration; Kernel density estimation; Wind farm;

D O I：

10.7500/AEPS20191219007

中图分类号：

学科分类号：

摘要：

In the regional power grid integrated with high proportional wind power, wind farms can be configured with energy storage system (ESS) as black-start power sources to accelerate the restoration after power outage. Aiming at smoothing wind power output in the process of starting generation units, an optimal configuration method of energy storage based on the asymmetric Copula function is proposed to equip the wind farms as black-start power sources with the minimum investment cost as the goal. The power configuration and capacity configuration of ESS are considered as two random variables, and the correlation characteristics between them are analyzed based on sample data, which are described accurately by the established binary joint probability distribution based on the asymmetric Copula function. The two marginal distributions are obtained by using kernel density estimation, and the optimal Copula function is determined based on maximum likelihood estimation and goodness of fitting test. Simulation results demonstrate that the proposed asymmetric Copula function has higher fitting accuracy and lower ESS configuration cost. © 2020 Automation of Electric Power Systems Press.

引用

页码：47 / 54

页数：7

共 28 条

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