Keio University

New Possibilities for Stabilizing Next-Generation Power Grids—Controlling the "Flow" of Electricity is Key

Publish: August 27, 2020
Public Relations Office

August 27, 2020

Keio University

The University of Electro-Communications

Masaki Inoue, a full-time lecturer at the Faculty of Science and Technology, Keio University, and Mitsuru Arahata (then a master's student in the Graduate School of Science and Technology), have developed a control method to restore the stability of power grids, which has deteriorated due to the introduction of renewable energy generation.

In Japan, a country with few natural resources, there are high expectations for renewable energy generation such as solar and wind power. However, the large-scale introduction of renewable energy generation degrades grid stability, and technology to restore grid stability has been needed to operate power grids with high reliability.

This research found that the state of power flow significantly contributes to grid stability and newly developed a control method for power flow to restore grid stability. The developed control method can be applied to power grids without introducing additional control equipment. The results of this research are expected to promote the further introduction of renewable energy generation.

This research was conducted in collaboration with Assistant Professor Tomonori Sadamoto of The University of Electro-Communications and Professor Aranya Chakrabortty of North Carolina State University.

The results of this research were published in an online early access version in the international journal "IEEE Transactions on Smart Grid" on August 26, 2020 (US time).

Please see below for the full press release.

Press Release (PDF)