Stochastic Optimization Method for Energy Storage System Configuration Considering Self-Regulation of the State of Charge

Delong Zhang, Yiyi Ma, Jinxin Liu, Siyu Jiang, Yongcong Chen, Longze Wang, Yan Zhang and Meicheng Li
Additional contact information
Delong Zhang: School of New Energy, North China Electric Power University, Beijing 102206, China
Yiyi Ma: School of New Energy, North China Electric Power University, Beijing 102206, China
Jinxin Liu: School of New Energy, North China Electric Power University, Beijing 102206, China
Siyu Jiang: School of New Energy, North China Electric Power University, Beijing 102206, China
Yongcong Chen: School of New Energy, North China Electric Power University, Beijing 102206, China
Longze Wang: School of New Energy, North China Electric Power University, Beijing 102206, China
Yan Zhang: School of Economics and Management, North China Electric Power University, Beijing 102206, China
Meicheng Li: School of New Energy, North China Electric Power University, Beijing 102206, China

Sustainability, 2022, vol. 14, issue 1, 1-19

Abstract: Photovoltaic (PV) power generation has developed rapidly in recent years. Owing to its volatility and intermittency, PV power generation has an impact on the power quality and operation of the power system. To mitigate the impact caused by the PV generation, an energy storage (ES) system is applied to the PV plants. The capacity configuration and control strategy based on the stochastic optimization method have become an important research topic. However, the accuracy of the probability distribution model is insufficient and a stochastic optimization method is rarely used in a control strategy. In this paper, a stochastic optimization method for the energy storage system (ESS) configuration considering the self-regulation of the battery state of charge (SoC) is proposed. Firstly, to reduce the sampling error when typical scenarios of PV power are generated, a time-divided probability distribution model of the ultra-short-term predicted error of PV power is established. On this basis, to solve the problem that SoC reaches the threshold frequently, a self-regulation model of the SoC based on multiple scenarios is established, which can regulate the SoC according to rolling PV power prediction. A stochastic optimization configuration model of the energy storage system is constructed, which can reduce the impact of PV uncertainty on the configuration result. Finally, the proposed stochastic optimization method is validated. The fitting error of the time-divided probability distribution model is 15.61% lower than that of the t-distribution. The expected revenue of the optimal configuration in this paper is 8.86% higher than the scheme with a fixed probability distribution model, and 16.87% higher than without considering the stochastic optimization method.

Keywords: ultra-short-term prediction; self-regulation of state of charge; energy storage system; stochastic optimization; multiple scenarios (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/1/553/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/1/553/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:1:p:553-:d:718061

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().