著者

鈴木 郁海 根岸 信太郎 池上 貴志

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌B(電力・エネルギー部門誌) (ISSN:03854213)

巻号頁・発行日

vol.140, no.6, pp.521-530, 2020-06-01 (Released:2020-06-01)

参考文献数

18

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It is expected to promote the introduction of renewable energy (RE), such as photovoltaic (PV) and wind power (WP), from the view points of carbon dioxide reduction and diversification of energy sources. However, as the introduction of RE into the conventional power grid, output curtailment of RE will increase due to supply and demand balance constraints. In this study, we have developed a model and data which enable long-term power supply and demand analysis based on some scenarios. Using this model and data, we analyzed the transition of the amount of RE generation and the amount of RE curtailment per installed capacity. As a result, the change in the facility utilization rate of PV and WP is clarified quantitatively based on the influence of RE curtailment. The amount of PV curtailment was significantly increased in Kyushu and Tohoku area, where RE is particularly widespread. The results of this paper can be used to evaluate how and when it is necessary to take measures such as the introduction of storage batteries.

著者

根岸 信太郎 池上 貴志

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌B(電力・エネルギー部門誌) (ISSN:03854213)

巻号頁・発行日

vol.139, no.12, pp.757-766, 2019-12-01 (Released:2019-12-01)

参考文献数

20

被引用文献数

6

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In this paper, a new method of water pumping scheduling in a water distribution system with providing balancing reserves to power systems is proposed. This method enables to obtain a daily schedule of pumping water and balancing reserves, which is based on prices of electric energy and balancing reserves, hourly water demand profile, and properties between water flow quantity and consumption electricity of water pumps. The proposed method consists of an optimization model which is formulated by Mixed Integer Linear Programming (MILP). The constraints about the fluctuation of the volume of water in a reservoir, which is occurred by providing the balancing reserves, is added into the proposed model. Adding these constraints, stable water distribution is enabled even when the balancing reserves are activated. To verify the validity of the proposed method, simulations of water pumping scheduling in some cases were done. As a result, net operational cost was decreased when water pumps provided the balancing reserves. Moreover, the operational feasibility of providing the balancing reserve from water pumps is clarified.