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Multi-stage expansion planning of energy storage integrated soft open points considering tie-line reconstruction

Li, Peng, Ji, Jie, Chen, Sirui, Ji, Haoran, Xu, Jing, Song, Guanyu, Zhao, Jinli, Wu, Jianzhong ORCID: and Wang, Chengshan 2022. Multi-stage expansion planning of energy storage integrated soft open points considering tie-line reconstruction. Protection and Control of Modern Power Systems 7 , 45. 10.1186/s41601-022-00268-5

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With the rapid development of flexible interconnection technology in active distribution networks (ADNs), many power electronic devices have been employed to improve system operational performance. As a novel fully-controlled power electronic device, energy storage integrated soft open point (ESOP) is gradually replacing traditional switches. This can significantly enhance the controllability of ADNs. To facilitate the utilization of ESOP, device locations and capacities should be configured optimally. Thus, this paper proposes a multi-stage expansion planning method of ESOP with the consideration of tie-line reconstruction. First, based on multi-terminal modular design characteristics, the ESOP planning model is established. A multi-stage planning framework of ESOP is then presented, in which the evolutionary relationship among different planning schemes is analyzed. Based on this framework, a multi-stage planning method of ESOP with consideration of tie-line reconstruction is subsequently proposed. Finally, case studies are conducted on a modified practical distribution network, and the cost–benefit analysis of device and multiple impact factors are given to prove the effectiveness of the proposed method.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Engineering
Additional Information: License information from Publisher: LICENSE 1: URL:, Type: open-access
Publisher: SpringerOpen
ISSN: 2367-2617
Date of First Compliant Deposit: 17 November 2022
Date of Acceptance: 28 October 2022
Last Modified: 21 May 2023 23:18

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