Power Flow Design Theory for Stable Operation of Next-Generation Grids

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K23509
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0302:Electrical and electronic engineering and related fields
• Research Institution: The University of Electro-Communications
• Principal Investigator: Sadamoto TOMONORI 電気通信大学, 大学院情報理工学研究科, 助教 (40839966)
• Project Period (FY): 2019-08-30 – 2022-03-31
• Keywords: 制御理論 / 電力システム / スマートグリッド / 潮流計算

Outline of Final Research Achievements

Power systems must maintain high stability against disturbances such as lightning strikes or temporary photovoltaic generator dropouts. The stability is highly dependent on power flow and controllers of the system. In this research, we first propose a method for designing power flow such that the stability is high while keeping the economic cost (e.g., fuel cost) as small as possible. Second, for re-designing controllers to follow the (time-varying) power flow target, we propose a computationally-friendly method of designing controllers using only operational data. The effectiveness of these methods is demonstrated through several case studies using a benchmark model.

Free Research Field

制御工学

Academic Significance and Societal Importance of the Research Achievements

太陽光発電所が突然停止しても家庭や職場に電気を送りつづけるためには電力システムの安定度を高く保つ必要があります．安定度は，電力の流れかた（潮流）と電力システム内に多数存在する制御器設定に大きく依存しています．本研究では，経済的なコストを可能な限りおさえつつも安定度の高い潮流状態を実現する方法と制御器の効率よい設計法をそれぞれ提案し，実際の電力システムを模擬したシミュレータを用いて有効性を検証しました．