Optimal configuration for regional integrated energy systems with multi-element hybrid energy storage

Mingfei Gao, Zhonghe Han, Ce Zhang, Peng Li, Di Wu and Peng Li

Energy, 2023, vol. 277, issue C

Abstract: This paper proposes a configuration method for a multi-element hybrid energy storage system (MHESS) to address renewable energy fluctuations and user demand in regional integrated energy systems (RIES). To reduce the investment cost of energy storage applications in RIES, a multi-timescale capacity configuration model is formulated, containing a day-ahead power planning model to optimize the power output of energy supply equipment on the hour-level scale and a day-in power operation model that considers the power response characteristics of MHESS to smooth out renewable energy fluctuations on the minute-level scale. In addition, an active energy storage operation strategy is proposed to minimize the configuration investment of MHESS in the day-ahead planning stage. The empirical mode decomposition algorithm is employed to decompose the target power of MHESS to derive the optimal capacity configuration and power output of each energy storage unit. The simulation results indicate that the proposed method is successful in reducing the investment cost when compared to both a passive and a simple Li-ion battery method. Specifically, the proposed method reduced the investment cost by 8.8% and 183.64%, respectively. This work provides a valuable reference for RIES optimization and further exploration of the potential for MHESS development.

Keywords: Regional integrated energy system; Multi-element hybrid energy storage system; Capacity configuration; Renewable energy fluctuation; Active energy storage strategy (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:277:y:2023:i:c:s0360544223010666

DOI: 10.1016/j.energy.2023.127672

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