电网技术2023，Vol.47Issue(12)：5181-5192,12.DOI:10.13335/j.1000-3673.pst.2022.1837
含储能有源配电网的运行域模型、求解及机理分析
Dispatchable Region Model and Its Solution and Mechanism for Active Distribution Network With Energy Storage
摘要
Abstract
Energy storage is an important element affecting the secure operation of smart distribution networks.This paper proposes the dispatchable region model for the urban active distribution network with energy storage to describe the secure operation range of the system with the participation of energy storage.Firstly,the different roles of energy storage are analyzed from the perspective of distribution network security.The security service time and the real-time security service capability of energy storage are defined in order to quantify the security services of energy storage in the distribution networks.Secondly,taking the load and the distributed generation output as the state variables of the security analysis,the dispatchable region model is established considering the capacity and voltage constraints.The model shows that the dispatchable region with energy storage has the new characteristics of time-varying and uncertainty.Thirdly,an analysis-simulation method is used to solve the model,which gives attention to both the effiiciency and accuracy.The analytical expressions of the region considering voltage constraints,network loss and real-time states of energy storage are obtained.Finally,through the implementation of two cases,the effects of energy storage on security are represented in the form of regions,revealing the functional mechanism of energy storage on the dispatchable region and the application of the dispatchable region,which gives a planning suggestion that energy storage is suitable to be configured downstream of the feeders.关键词
有源配电网/运行域/储能/模型/安全服务能力Key words
active distribution network/dispatchable region/energy storage/model/security service capability分类
信息技术与安全科学引用本文复制引用
肖峻,李承晋,屈玉清,焦衡,宋晨辉..含储能有源配电网的运行域模型、求解及机理分析[J].电网技术,2023,47(12):5181-5192,12.基金项目
国家自然科学基金项目(51877144).Project Supported by National Natural Science Foundation of China(NSFC)(51877144). （51877144）
