Dual-battery energy storage system targeting using dual battery power pinch analysis

Arfah Diyanah Nizamuddin, Wai Shin Ho, Zarina Ab Muis, Haslenda Hashim, Muhammad Afiq Zubir, Wong Keng Yinn, Kok Sin Woon and Liew Peng Yen

Energy, 2024, vol. 313, issue C

Abstract: Single-battery energy storage (SBESS) struggles to meet the varying load demand without experiencing battery degradation. Dual-battery energy storage system (DBESS) which comprises of two sets of parallel-connected batteries offers a solution that extends battery lifetime, while meeting dynamic load. This paper introduces a numerical method based on Pinch Analysis for the targeting and sizing of DBESS. The methodology is an extension of the Electric System Cascade Analysis (ESCA) methodology which was used to identify capacity of energy storage and power generators. The proposed extended method also known as Dual-Battery Power Pinch Analysis (DBPPA) is employed in three case studies with varying occurrences of peak demand (Case Study 1 has 1 occurrence of peak demand, Case Study 2 has 2 occurrences of peak demand, while Case Study 3 has 3 occurrences of peak demand) to demonstrate the new algorithm of DBPPA and the impact of DBESS on the occurrence of peak demands. The energy demand is met using a biogas system together with a battery system. The sizing of SBESS and DBESS was compared in each case study to demonstrate the advantages of DBESS in terms of cost savings and battery lifetime. Cost savings of 18 % and 44 % were achieved in Case Study 1 and Case Study 3, respectively. Case Study 2 demonstrates an 8 % increase in cost, suggesting that for specific load profiles, SBESS is more advantageous than DBESS.

Keywords: Pinch analysis; Electric cascade analysis; Renewable energy; Dual-battery energy storage; Targeting; Lifetime; Battery’s health (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:313:y:2024:i:c:s0360544224035758

DOI: 10.1016/j.energy.2024.133797

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