Control Strategy of Voltage Regulation for Distributed Energy Storage Cluster in Distribution Network

被引：0
|
作者：
Li C. [1 ]
Dong Z. [1 ]
Li J. [1 ]
Zhang H. [2 ]
Jin Q. [2 ]
Qian K. [3 ]
机构：
[1] Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin
[2] State Grid Economic and Technological Research Institute Co., Ltd., Beijing
[3] Jiangsu Power Design Institute Company, China Energy Engineering Group, Nanjing
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2021年 / 45卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Cluster control; Distributed energy storage; Distributed generator; Distribution network; Voltage regulation;
D O I：
10.7500/AEPS20200410005
中图分类号：
学科分类号：
摘要：
Considering that the distributed generators and electric vehicles are connected to the distribution network on a large scale, the node voltage limit will be exceeded and the operation economy of the energy storage system needs to be improved. A voltage regulation control strategy for distributed energy storage clusters is proposed. First, the voltage control cluster of the distribution network is formed by constructing a modularity index based on electrical distance. Then, according to the priority principle of over-limit severe cluster, the energy storage regulating power of each cluster is determined, and the power of each energy storage in the cluster is distributed according to the node voltage sensitivity. By taking into account the constraints of the safety of the distribution system and the operation of the energy storage system, an economic cluster voltage regulation model is constructed. The variation trend of the network loss return and operating arbitrage return of the energy storage system within the allowable voltage deviation range is analyzed, and the optimal timing output for the energy storage in each cluster is determined. Simulation results show that the proposed control strategy for the cluster voltage regulation can effectively eliminate the node voltage over-limit and improve the operation economy of the energy storage system. © 2021 Automation of Electric Power Systems Press.
引用
收藏
页码：133 / 141
页数：8
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