直流アークレス（抑制）金属接点ハイブリッド・スイッチの試作と多数動作試験

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: 2022/06/01

タイトル(英語): DC Metal Contact Non-arc Hybrid Switch and its Multiple Operation Test

著者名: 山口　作太郎（中部大学・超伝導センター），神田　昌枝（中部大学・超伝導センター），芳村　幸治（中部大学・超伝導センター），齋藤　涼夫（中部大学・超伝導センター）

著者名(英語): Sataro Yamaguchi (Center of Applied Superconductivity and Sustainable Energy Research (CASER), Chubu University), Masae Kanda (Center of Applied Superconductivity and Sustainable Energy Research (CASER), Chubu University), Koji Yoshimura (Center of Applied Superconductivity and Sustainable Energy Research (CASER), Chubu University), Suzuo Saitoh (Center of Applied Superconductivity and Sustainable Energy Research (CASER), Chubu University)

キーワード: 直流スイッチ，ハイブリッド・スイッチ，自己消弧型半導体素子，短時間アーク，多数回動作試験　　DC switch，metal contact switch，self-turn-off semiconductor element，non-arc interruption，multiple operation test

要約(英語): We made a DC switch, which is composed of the commercial power relay and Si-IGBT. They are connected in parallel, and we controlled the timing of the relay metal contact switch and the IGBT ON/OFF timing. The operation principle is that the relay switch is open when the IGBT is ON. Then, the relay current flowed into the IGBT, and its commutation time is ～0.25μ s. Finally, the current is interrupted by the IGBT. Therefore, we realized the non-arc operation. We also used the flywheel diode to avoid the surge voltage induced when we interrupted the direct current of the inductor by the IGBT. We tested its performance under the voltage and current of DC400V and 1A to 10A. We also tested multiple operations, up to 20,000 times, and had no failure of the non-arc operation completely. After the 20,000 times operations, we observed the surface of the metal contacts by scanning electron microscopy (SEM) and optical microscopy. The arc mark is observed clearly on the positive contact because the arc is not induced perfectly. But the arc mark on the negative contact is unclear. The rely resistance is almost the same as the new contact's after 20,000 times operation. This principle will be effective for high voltage and large current switches.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.142 No.6 （2022）

本誌掲載ページ: 315-322 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/142/6/142_315/_article/-char/ja/