北海道における配電系統と蓄熱技術を用いた災害時の電力マネジメントおよび熱供給システムの検討

抄録

This paper discusses the future power and heat supply systems at the time of disaster in Hokkaido. A power supply model for the four separated regions of Hokkaido is developed, and the capacities of power generation equipment to meet the power demand with the minimum cost are analyzed. The power supply costs with and without power transmission between the regions are compared in two scenarios, with and without fluctuation countermeasure technology. In both scenarios, the cost tends to increase from the renewable energy share of 50%. Moreover, as the share increases, the cost difference greatly increases when comparing both scenarios and at the same time, the cost difference becomes more prominent with and without the transmission. In addition, the output fluctuations with a renewable energy share of 80% in the storage battery introduction scenario are compared, and it is shown that charging/discharging of the storage battery has a great influence on output levelling in case with no transmission. Further, this research plans to develop the optimal heat supply system which can supply the minimum heat to public facilities in a region, especially in winter.