On-line Voltage Stability Evaluation for Multiple Contingencies

カテゴリ: 全国大会

論文No: 6-107

グループ名: 【全国大会】平成15年電気学会全国大会論文集

発行日: 2003/03/17

タイトル(英語): On-line Voltage Stability Evaluation for Multiple Contingencies

著者名: 李 華強(広島大学),餘利野 直人(広島大学),佐々木 博司(広島大学)

著者名(英語): Huaqiang Li(Hiroshima University),Naoto Yorino(Hiroshima University),Hiroshi Sasaki(Hiroshima University)

キーワード: 電圧安定性|多重故障|負荷余裕|サドルノード分岐点

要約(日本語): This paper proposes a fast and accurate computation method to evaluate the load power margins with respect to saddle node bifurcations under the multiple contingencies, in which include three types of contingencies, G-G (two generators) outages, G-B (one generator and one branch) outages, and B-B (two branches) outages. The proposed method is based on the conventional linear sensitivity method. Then, the linear estimations are considerably improved by taking into account nonlinearities of the power flow equations and by using a fast line search technique. The effectiveness of the proposed method is demonstrated through IEEE 14, 30, 57 bus systems. The estimation errors in load power margins are not more than 11% for all possible contingencies.

原稿種別: 日本語

PDFファイルサイズ: 2,742 Kバイト