BI-LEVEL OPTIMAL CONFIGURATION OF ENERGY STORAGE SYSTEM IN ACTIVE DISTRIBUTION NETWORK BASED ON FLEXIBLE INTERCONNECTION

Yan Xiangwu; Jin Ruiqi; Lu Junda; Jia Jiaoxin; Guo Meichen; Wu Ming

doi:10.19912/j.0254-0096.tynxb.2024-0845

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (9) : 303-312. DOI: 10.19912/j.0254-0096.tynxb.2024-0845

BI-LEVEL OPTIMAL CONFIGURATION OF ENERGY STORAGE SYSTEM IN ACTIVE DISTRIBUTION NETWORK BASED ON FLEXIBLE INTERCONNECTION

Yan Xiangwu¹, Jin Ruiqi¹, Lu Junda¹, Jia Jiaoxin¹, Guo Meichen¹, Wu Ming²

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Abstract

Aiming at the problems of wind and solar curtailment, reverse transmission and over-limit of feeder power caused by the access of distributed generation in high-penetration active distribution network, this paper proposes a bi-level optimal configuration method of energy storage system based on flexible interconnection of rotating power flow controller. Firstly, a bi-level framework is presented, where the objective is to minimize the payback period of RPFC and energy storage combined system in the outer planning layer to realize the optimal configuration of RPFC and energy storage location and capacity, and the objective is to minimize the annual operation cost in the inner operation layer with RPFC participating in the operation optimization as a flexible adjustment resource. Secondly, the hybrid optimization of genetic algorithm and Pulp solver is used to solve the optimal configuration model. Finally, the optimal configuration model is verified on the example of IEEE 33-node. The results verify the applicability of the proposed optimal configuration scheme of RPFC and energy storage combined system, which can effectively promote the renewable energy consumption, and improve flexibility and economy of system.

Key words

distribution networks / energy storage / site selection / flexible interconnection / rotating power flow controller / optimal configuration

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Yan Xiangwu, Jin Ruiqi, Lu Junda, Jia Jiaoxin, Guo Meichen, Wu Ming. BI-LEVEL OPTIMAL CONFIGURATION OF ENERGY STORAGE SYSTEM IN ACTIVE DISTRIBUTION NETWORK BASED ON FLEXIBLE INTERCONNECTION[J]. Acta Energiae Solaris Sinica. 2025, 46(9): 303-312 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0845

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