Wind Farm Energy Storage Configuration Based on Wiener Stochastic Process

被引：0
|
作者：
Li X. [1 ]
Zhao H. [1 ]
机构：
[1] Tianjin Electric Power Design Institute, China Energy Engineering Group, Hedong District, Tianjin
来源：
Dianwang Jishu/Power System Technology | 2022年 / 46卷 / 09期
关键词：
electrochemical energy storage; first-order filtering; power fluctuation; stochastic process; wind farm;
D O I：
10.13335/j.1000-3673.pst.2021.1447
中图分类号：
学科分类号：
摘要：
For the wind power control system with electrochemical energy storage, taking the first-order Butterworth filter as the real-time high-frequency power extraction, the energy needed from the energy storage system to suppress the wind power fluctuations in a period of time is theoretically analyzed, obtaining the maximum energy storage required． By introducing the Wiener stochastic process, the process formed by the ratio of the energy provided by the energy storage system to the filtering time constant in a certain period is proved to be a Wiener stochastic process． The variation trend of the mean and variance parameters of the probability distributions of the wind power variation at different time intervals in different time scales is analyzed．On this basis, a configuration of the energy storage power capacity and the energy capacity meeting at a certain confidence interval is proposed, unifying the selection process of the energy storage power and the energy． Based on the monthly active power data of a domestic wind turbine, the capacity configuration of the energy storage system in the actual scene is calculated．A wind power control system with energy storage is built in the PSCAD/EMTDC． The simulation results verify the effectiveness and practicability of the proposed configuration. © 2022 Power System Technology Press. All rights reserved.
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页码：3437 / 3446
页数：9
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