モータ負荷のストール現象におけるトルク?速度曲線と安定限界線の等価性

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2017/12/01

タイトル(英語): Equivalence of T-ω Curve and Stability Boundary Curve on Induction Motor Load's Stall Phenomenon

著者名: 駒見　慎太郎（北陸電力（株）技術開発研究所），山田　誠司（北陸電力（株）技術開発研究所），谷川　知也（北陸電力（株）ネットワークサービスセンター）

著者名(英語): Shintaro Komami (Engineering Research & Development Center, Hokuriku Electric Power Company), Seiji Yamada (Engineering Research & Development Center, Hokuriku Electric Power Company), Tomoya Tanikawa (Network Service Center, Hokuriku Electric Power Company)

キーワード: 電力系統安定度，誘導電動機，ストール，P-Vカーブ，トルク?速度曲線，安定限界線　　power system stability，induction motor，stall，P-V curve，torque-speed curve，stability boundary curve

要約(英語): Since it has become obvious that half or more electricity is used by induction motors, modeling of induction motor load has become regarded as essential in power system stability analyses even in Japan, because power system stability can be extremely spoiled by motor's stall phenomenon. Therefore, for understanding and explanation of motor's stall phenomenon, some theory has also become recognized as essential. The authors had demonstrated that motor's stall can be well explained by “torque-speed curve” considering impedance of power system side by analysis, simulation, and experiment. By the way, stall can be regarded as “fast voltage instability” making a pair with “slow voltage instability” caused by run-away of on-load tap changer. Since “slow voltage instability” has been well explained by “P-V curve”, it seems desirable that “fast voltage instability” (i.e. stall phenomenon) is also explained by “P-V curve”. In P-V curve for explaining motor's stall, it becomes an issue how mechanical output torque that depends on only motor speed can be considered. On one hand, T-ω curve can be successfully translated onto P-V plane. On the other hand, “stability boundary curve” is introduced from past studies. These two theories, which seem different at a glance, are demonstrated as equivalent and well agree with simulation result.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.137 No.12 （2017）

本誌掲載ページ: 749-755 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/137/12/137_749/_article/-char/ja/