Fundamental Investigation Technique on Gas-blast Arc Behaviors in Decaying and Re-ignition Processes using Power Semiconductors

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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: 2015/11/01タイトル(英語): Fundamental Investigation Technique on Gas-blast Arc Behaviors in Decaying and Re-ignition Processes using Power Semicon ductors著者名: Yasunori Tanaka (Faculty of Electrical and Computer Engineering, Kanazawa University), Tomoyuki Nakano (Faculty of Electrical and Computer Engineering, Kanazawa University), Takahiro Shimizu (Department of Applied Science for Electronics and Materials, Ky著者名(英語): Yasunori Tanaka (Faculty of Electrical and Computer Engineering, Kanazawa University), Tomoyuki Nakano (Faculty of Electrical and Computer Engineering, Kanazawa University), Takahiro Shimizu (Department of Applied Science for Electronics and Materials, Kyushu University), Kentaro Tomita (Department of Applied Science for Electronics and Materials, Kyushu University), Takayasu Fujino (Division of Engineering Mechanics and Energy, University of Tsukuba), Katsumi Suzuki (Department of Electrical and Electronic Engineering, Tokyo Denki University)キーワード: circuit breaker，alternatives for SF6，CO2，free recovery，high speed video，recovery voltage要約(英語): This paper has proposed a new fundamental investigation technique on arc behaviors in decaying and re-ignition processes under gas flow condition. This technique utilizes power semiconductors like insulated-gate bipolar transistors (IGBTs) to control the arc current and voltage with a high accuracy in time domain. The free recovery condition was created by switching-on an IGBT connected in parallel with the arc device to investigate decaying process of the arc plasma under gas flow condition. Then, the quasi-transient recovery voltage (quasi-TRV) was intentionally applied between the electrodes in the arc device under the free recovery condition by turning-off the IGBT again, to study the re-ignition process of the arc plasma. At the same time, the arc behavior in a nozzle was observed by a high speed video camera at a frame rate of 200,000 fps. In the present work, arc behaviors in gas flow such as SF6 and CO2 in a nozzle was fundamentally investigated under free recovery condition and then after quasi-TRV application. In addition, the timing of the quasi-TRV application was changed to examine the recovery property of residual arcs in SF6 and CO2 gas flow. Through these experiments, the probability of arc successful interruptions were statistically measured for these gas flow arcs. These results provide fundamental data for comparison of the arc interruption capability of different conditions.本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.135 No.11 （2015） 特集：IWHV 2014本誌掲載ページ: 661-668 p原稿種別: 論文／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/135/11/135_661/_article/-char/ja/ Show more