Installed generator capacity determination method with variable weather-based SOC operation for island-alone off-grid system

Souichiro Kama, Jun Yoshinaga, Wataru Hirohasi, Yasuhiro Hayashi, Masato Watanabe, Hikaru Takigasaki

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

Abstract

Off-grid power systems have been installed in many countries to provide a stable electricity supply to remote island areas. However, off-grid systems with internal-combustion engines, such as diesel-turbine cogeneration systems, have significant operating costs, e.g., high transport, management, and fuel costs, and additional complications. In this paper, installation of an off-grid system using renewable energy, i.e., a photovoltaic (PV) and battery energy storage system (BESS), is considered and a cost-minimizing installation method is proposed. The optimal parameters for managing the BESS state of charge (SOC) using weather information, which can reduce the operational expense for an installed off-grid system, are verified. Hence, the PV output, BESS capacity, number of diesel-engine (DE) operations, and appropriate BESS SOC are determined using the proposed method, actual load, and PV output data.

Original languageEnglish
Title of host publication2017 IEEE Innovative Smart Grid Technologies - Asia
Subtitle of host publicationSmart Grid for Smart Community, ISGT-Asia 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
ISBN (Electronic)9781538649503
DOIs
Publication statusPublished - 2018 Jun 8
Event7th IEEE Innovative Smart Grid Technologies - Asia, ISGT-Asia 2017 - Auckland, New Zealand
Duration: 2017 Dec 42017 Dec 7

Publication series

Name2017 IEEE Innovative Smart Grid Technologies - Asia: Smart Grid for Smart Community, ISGT-Asia 2017

Other

Other7th IEEE Innovative Smart Grid Technologies - Asia, ISGT-Asia 2017
CountryNew Zealand
CityAuckland
Period17/12/417/12/7

Keywords

  • BESS
  • Microgrid
  • Off grid
  • Offshore installations
  • Photovoltaic systems
  • Power grids

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Control and Optimization
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Kama, S., Yoshinaga, J., Hirohasi, W., Hayashi, Y., Watanabe, M., & Takigasaki, H. (2018). Installed generator capacity determination method with variable weather-based SOC operation for island-alone off-grid system. In 2017 IEEE Innovative Smart Grid Technologies - Asia: Smart Grid for Smart Community, ISGT-Asia 2017 (pp. 1-5). (2017 IEEE Innovative Smart Grid Technologies - Asia: Smart Grid for Smart Community, ISGT-Asia 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISGT-Asia.2017.8378329