A Study of Isolated Operation of a Microgrid Configured with New Energy Generators

• Sumita Jiro

  NTT Facilities, Inc.

• Nishioka Kojiro

  NTT Facilities, Inc.

• Noro Yasuhiro

  Toshiba Corp.

• Shinohara Hirofumi

  Toshiba Corp.

• Ito Yozo

  Toshiba Fuel Cell Power Systems Corp.

• Yabuki Masanori

  Toshiba Fuel Cell Power Systems Corp.

• Kawakami Noriko

  Toshiba Mitsubishi-Electric Industrial Systems Corp.

Bibliographic Information

Other Title

• 新エネルギー発電装置を用いたマイクログリッドの自立運転の検討
• シン エネルギー ハツデン ソウチ オ モチイタ マイクログリッド ノ ジリツ ウンテン ノ ケントウ

Abstract

The “New Energy Plant” had been built at the Aichi EXPO. 2005 site as part of the “Demonstrative Project of Regional Power Grid with Various New Energies”. The plant includes three types of fuel cells, photovoltaic power generation system and Sodium Sulfur (NaS) battery. One of the purposes of the demonstrative project is to verify supply/demand control to minimize the effect on the utility grid. Isolated operation of a microgrid is an ultimate state to be no interaction between utility grid and the microgrid. It also increases value of the microgrid. These new energy generators and battery are connected to the microgrid via inverter and there are no rotating generators. There are no established techniques to startup and control voltage and frequency of such system. The authors carried out a verification test of isolated operation of the microgrid.<br>This paper presents the control strategies for isolated operation of a microgrid configured with some new energy generators. Simulation results of system excitation, load share operation, and response for load change such as an induction motor is connected are shown. This paper also presents the test result of isolated operation of a microgird on Aichi EXPO. 2005. The system had separated from utility grid, and performed stable controllability for load change for around three weeks.

Journal

• IEEJ Transactions on Power and Energy

  IEEJ Transactions on Power and Energy 127 (1), 145-153, 2007

  The Institute of Electrical Engineers of Japan

Keywords

• microgrid
• isolated operation
• new energy generator
• inverter
• simulation
• verification test

Details

• CRID: 1390001204603496448
• NII Article ID: 10018456518
• NII Article ID: 30027012312
• NII Book ID: AN10136334
• DOI: 10.1541/ieejpes.127.145
• ISSN: 13488147
• ISSN: 03854213
• NDL BIB ID: 8625946
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8625946
• Web Site: http://www.jstage.jst.go.jp/article/ieejpes/127/1/127_1_145/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed