エネルギー関数の凸性に基づく無損失電力系統の定態安定性解析

カテゴリ：部門大会

論文No：037

グループ名：【B】令和7年電気学会電力・エネルギー部門大会

発行日：2025/9/5

タイトル(英語)：Small-Signal Stability Analysis of Lossless Power Systems Using Energy Function Convexity

著者名：西野択（東京科学大学），小泉滋元（東京科学大学），石崎孝幸（東京科学大学）

著者名(英語)： Taku Nishino (Institute of Science Tokyo), Jigen Koizumi (Institute of Science Tokyo), Takayuki Ishizaki (Institute of Science Tokyo)

キーワード：定態安定性解析,エネルギー関数,Small-Signal Stability,Energy Function

要約(日本語)：In this study, we propose a theoretical framework for evaluating the small-signal stability of power systems. Specifically, we derive a new necessary and sufficient condition for the small-signal stability of power systems in an analytically tractable form. Furthermore, based on this insight, we establish a systematic methodology for reducing a subset within the power system to an equivalent generator model while preserving its small-signal stability properties. This proposal can help reduce the computational burden, eliminate conservatism, and improve the analytical accuracy of large-scale stability analysis, thereby supporting more reliable decision-making in the planning and operation of future power systems.

PDFファイルサイズ：757Kバイト