Optimal battery energy storage dispatch strategy for small‐scale isolated hybrid renewable energy system with different load profile patterns

Fauzan Hanif Jufri, Dwi Riana Aryani, Iwa Garniwa, Budi Sudiarto

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Most inhabited islands in Indonesia are powered by expensively known diesel generators and isolated from the primary grid due to either geographical or economic reasons. Meanwhile, the diesel generator can be combined with a photovoltaic (PV) system and Battery Energy Storage (BES) system to form a hybrid power generation system to reduce the energy cost and increase renewable energy penetration. For this, proper sizing of each power generation component is required, one of which is influenced by the applied control strategy. This paper proposes an optimal BES dispatch (OBD) control strategy that optimizes the power generation components’ sizing. The method examines the shortcomings of the other popular control strategies, such as load following, cycle charging, or combination. The optimization objectives are to minimize the Levelized Cost of Energy (LCOE) and maximize the renewable energy (RE) penetration, which can be achieved by prioritizing the BES to supply the load over other available generations and charge the BES every time the generator operates. The proposed method is implemented at two different systems with different load profiles. As a result, the proposed control strategy provides lower LCOE while maintaining higher RE penetration than the other control strategies in both locations.

Original languageEnglish
Article number3139
JournalEnergies
Volume14
Issue number11
DOIs
Publication statusPublished - 1 Jun 2021

Keywords

  • Battery energy storage (BES)
  • Combined dispatch (CD)
  • Cycle charging (CC)
  • Hybrid power generation
  • Isolated grid
  • Load following (LF)
  • Optimal BES discharge (OBD)
  • Photovoltaic (PV)

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