Study on resilient microgrid using HP/CGS heat and power supply system

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K03992
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 21010:Power engineering-related
• Research Institution: Hokkaido University
• Principal Investigator: Kita Hiroyuki 北海道大学, 情報科学研究院, 教授 (30214779)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 電力系統 / マイクログリッド / ヒートポンプ / コジェネレーションシステム / 蓄電池 / 水素 / EV

Outline of Final Research Achievements

In this research, we introduce combined heat and power generation technology that uses heat pumps and cogeneration into a microgrid (MG), and utilize its equivalent power storage function to suppress unstable output fluctuations of renewable energy power sources. We proposed an internal configuration and operation/control method for esilient MG that can continue supplying energy, and clarified its effectiveness.
Specifically, we calculated the internal structure and capacity of a disaster-prevention regional MG and the corresponding equipment cost on an energy flow basis, and through numerical calculations, we found that introducing hydrogen supply equipment would be effective in ensuring autonomous operation and adjustment ability. It was shown to be effective on both sides. It was confirmed that the additional investment required at that time could be realized within the recoverable range.

Free Research Field

電力系統工学

Academic Significance and Societal Importance of the Research Achievements

災害等に伴う電力系統のブラックアウトや広域停電に対して，MG内に存在する再エネ，蓄電池，CGS，等のローカルリソースを適切にマネジメントすることにより，災害時にも長時間に亘ってエネルギー供給を継続できる防災型のエネルギーシステムを構築することが可能となった．その際，間欠的な出力変動特性を持つ太陽光発電(PV)や風力発電（WT）を安定に活用するために，熱や水素などMGに特有な他のエネルギー供給システムとの協調を図ることが重要であることが明らかとなった．