Optimal scheduling of mobile energy storage in active distribution network based on dynamic reactive power and voltage sensitivity

被引：0
|
作者：
Wang Y. [1 ]
Chen Q. [1 ]
Zheng Y. [2 ]
Xue H. [1 ]
Li M. [2 ]
Mi Y. [1 ]
机构：
[1] College of Electrical Engineering, Shanghai University of Electric Power, Shanghai
[2] Electric Power Research Institute of State Grid Xinjiang Electric Power Co.，Ltd., Urumqi
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2023年 / 43卷 / 02期
基金：
中国国家自然科学基金;
关键词：
active distribution network; dynamic reactive power and voltage sensitivity; mobile battery energy storage system; optimal scheduling; peak load shifting; voltage regulation;
D O I：
10.16081/j.epae.202205040
中图分类号：
学科分类号：
摘要：
With the increase of urban load peak and the penetration rate of distributed generations，there are risks of further increase of peak-valley load difference and voltage out-of-limit in active distribution network. mobile battery energy storage system（MBESS） has time-space flexibility and four-quadrant output capability. Considering MBESS active power output participating in peak load shifting and reactive power output participating in voltage regulation，an optimal scheduling method of MBESS in active distribution network based on voltage sensitivity analysis is proposed. Firstly，in view of the coupling effect between the MBESS output and its access position，the reactive power and voltage correction sensitivity satisfying the affine relation under the condition of constant active power is derived. Secondly，considering the voltage adjustment requirements of different buses under different network structures，a calculation method of dynamic reactive power and voltage correction sensitivity is proposed to determine the optimal access scheme of MBESS. Then，a two-layer optimal scheduling model of MBESS is constructed，which fully considers the operation economy and reliability. Finally，taking IEEE 33-bus distribution system as an example，the proposed model is solved by using the enhanced fireworks algorithm. The results show that the proposed method can effectively reduce the peak-valley load difference and improve the overall voltage level of the distribution system while ensuring good economic benefits of MBESS. © 2023 Electric Power Automation Equipment Press. All rights reserved.
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页码：29 / 35+59
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