Impact of State-of-Charge Control Integrated with Load-Frequency Control on Battery Energy Storage System in Islanded Microgrid System

Sandro Sitompul, Goro Fujita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Islanded microgrid systems are highly susceptible to disturbances. Fluctuating loads, low system inertia, the intermittent output of renewable energy sources (RES) alSOContribute to system disturbances. The use of storage devices, especially the battery energy storage (BES) system, provides the answer that the system can maintain its stability. The BES can participate actively in regulating the system frequency. However, the battery's active participation causes fluctuation in its state-of-charge (SOC), causing unstable battery performance and shortening the battery lifetime. By increasing the battery capacity, such a problem is solved. Nevertheless, the enlarged battery capacity may make its economic value unattractive. Hence, SOC control is needed on the BES to maintain battery performance but does not override system performance. In this paper, a battery SOC control installed in BES load-frequency control (EEC) is proposed in this study. The proposed method is evaluated based on battery performance for one year. It provides technical performance, which stays within the grid code and provides low economic value compared to other control.

Original languageEnglish
Title of host publicationProceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages199-203
Number of pages5
ISBN (Electronic)9781728163444
DOIs
Publication statusPublished - 2021 May 24
Event12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021 - Virtual, Singapore, Singapore
Duration: 2021 May 242021 May 27

Publication series

NameProceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021

Conference

Conference12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Country/TerritorySingapore
CityVirtual, Singapore
Period21/5/2421/5/27

Keywords

  • battery energy storage
  • Islanded microgrid
  • load-frequency control
  • state-of-charge control

ASJC Scopus subject areas

  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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