Evaluation of micro grid including power storage device

Takao Shinji, Tetsuo Yamakami, Akito Moriyama, Atushi Akisawa, Takao Kashiwagi, Goro Fujita, Masayoshi Matsubara

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Renewable energies such as wind power or photovoltaic energy are getting attentions for view points of energy conservation and environmental issue. However, fluctuation of output power of renewable energies may cause excess variation of voltage or frequency of the grid. Increase of the amount of renewable energies would violate the quality of the grid. The micro grid in which dispersed energies compensate the variation from the renewable energies can expand the installation limit of the renewable energies by maintaining the quality of the interconnected grid. In this paper, evaluation of ratio of gas turbines, gas turbines and batteries is discussed from the point of power flow stability of the grid, efficiency and economy. Gas turbines have quicker response and lower efficiency, whereas gas engines have slower response and higher efficiency. Best ratio is discussed for higher efficiency while fluctuation of output power of the micro grid is kept in a small amount. Additionally, introducing batteries is discussed to introduce more gas engines he point of power flow stability of the grid, efficiency and economy.

Original languageEnglish
Pages (from-to)199-204
Number of pages6
JournalNihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy
Issue number3
Publication statusPublished - 2009 Mar


  • Dispersed power source
  • Micro grid
  • Power flow fluctuation
  • Power storage device
  • Renewable energy
  • Wind power

ASJC Scopus subject areas

  • Energy(all)


Dive into the research topics of 'Evaluation of micro grid including power storage device'. Together they form a unique fingerprint.

Cite this