Statistical Modeling of Controllable Heat Pump Water Heaters Considering Customers' Convenience and Uncertainty and its Application to Frequency Control in Power System with a Large Penetration of Renewable Energy Sources

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  • 大量の再生可能エネルギー電源が導入された電力系統における需要家の利便性と不確実性を考慮した多数台の可制御ヒートポンプ給湯機の統計的モデリングとその周波数制御への適用
  • タイリョウ ノ サイセイ カノウ エネルギー デンゲン ガ ドウニュウ サレタ デンリョク ケイトウ ニ オケル ジュヨウカ ノ リベンセイ ト フカクジツセイ オ コウリョ シタ タスウ ダイ ノ カ セイギョ ヒートポンプ キュウトウキ ノ トウケイテキ モデリング ト ソノ シュウハスウ セイギョ エ ノ テキヨウ

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Nowadays, electric power systems confront many problems, such as environmental issues, aging infrastructures, energy security, and quality of electricity supply. The smart grid is a new concept of a better future grid, which enables us to solve the mentioned problems with Information and Communication Technology (ICT). In this research, a number of Heat Pump Water Heaters (HPWHs), one of the energy efficient-use customer equipment, and Battery Energy Storage System (BESS) are considered as controllable equipment for the frequency control. The utilization of customer equipment such as HPWH for power system control is one of the key elements in the concept of Ubiquitous Power Grid, which was proposed by our research group as a smart grid in Japanese context. The frequency control using a number of HPWHs with thermal storage of hot water tank is evaluated. Moreover, a novel statistical modeling of controllable HPWHs taking into account customers' convenience and uncertainty is proposed.

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