Operation Optimization Method for Flexible Distribution Network Considering the Integration of Mobile Energy Storage

doi:10.11930/j.issn.1004-9649.202210111

Abstract

Abstract: The high penetration of distributed generators (DGs) exacerbates the operation volatility of distribution networks, which seriously challenges the economic and safety operation of distribution networks. In order to avoid the problems caused by high penetration of DG integration, a novel operation optimization strategy for flexible distribution network (FDN) is proposed considering the applications of soft open point (SOP) and mobile energy storage (MES). Firstly, the model of FDN with multi-type devices is described, which can use the potential of controllable resources for flexibility improvement. The MES is accessed to the distribution network through the DC link of SOP, and the SOP model with mobile energy storage access is established. Secondly, the optimal operation strategy is proposed to facilitate the flexible operation of FDN, considering the power flow constraints, flexible devices operation constraints and MES operation constraints. Finally, the modified IEEE 33-node system is used to verify the effectiveness of the proposed method, which shows that the network losses are effectively reduced and the voltage profile is improved due to the coordination of SOP and MES.

Key words: mobile energy storage, soft open point, flexible distribution network, operation optimization

XU Jing, ZHAO Liang, ZHANG Liang, QIAN Guangchao, MA Chiyuan, SONG Guanyu, LI Peng. Operation Optimization Method for Flexible Distribution Network Considering the Integration of Mobile Energy Storage[J]. Electric Power, 2023, 56(9): 112-119.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202210111

https://www.electricpower.com.cn/EN/Y2023/V56/I9/112

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