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Real-Time Estimations of Power System Inertia and Damping Coefficient During System Disturbances Considering Area Aggregation

Real-Time Estimations of Power System Inertia and Damping Coefficient During System Disturbances Considering Area Aggregation

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カテゴリ: 部門大会

論文No: 193

グループ名: 【B】令和2年電気学会電力・エネルギー部門大会

発行日: 2020/08/28

タイトル(英語): Real-Time Estimations of Power System Inertia and Damping Coefficient During System Disturbances Considering Area Aggregation

著者名: Yuhan Wang(東京大学),横山明彦(東京大学)

著者名(英語): Yuhan Wang (The University of Tokyo), Akihiko Yokoyama (The University of Tokyo)

キーワード: 系統慣性定数|制動係数|電力系統|太陽光発電|Power System Inertia Constant|Damping Coefficient|Power System|Photovoltaics

要約(英語): There is concern that the installation of large-scale renewable energy sources threatens the frequency stability of a power system. Focusing on the frequency stability, this paper presents a real-time estimation method of system inertia and damping coefficient in a power system model. The method is simulated in the IEEJ West 10-machine System model. The estimation results with photovoltaic generations (PVs) are also investigated. Real-time estimation using fast measuring devices such as phasor measurement units (PMUs) is assumed. The transfer function of the system using the swing equation is calculated. Based on this transfer function, this paper adopts a method applying the Least Squares Fitting by using the frequency deviations, their time derivatives and power changes in the power system model.

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