繰り返しインパルス印加時のモータコイルにおける電界緩和層の電位分布および温度分布

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2015/02/01

タイトル(英語): Potential and Temperature Distributions on Stress Grading System of Motor Coil under Repetitive Impulses

著者名: 中村　隆央（東京大学 工学部 電気電子工学科），熊田　亜紀子（東京大学 工学部 電気電子工学科），池田　久利（東京大学 工学部 電気電子工学科），日高　邦彦（東京大学 工学部 電気電子工学科），Steven A. Boggs（Institute of Materials Science, University of Connecticut），坪井　雄一（東芝三菱電機産業システム（株）），木崎原　智仁（東芝三菱電機産業システム（株）），櫻井　孝幸（東芝三菱電機産業システム（株）），吉満　哲夫（東芝三菱電機産

著者名(英語): Takahiro Nakamura (Electrical and Electronic Engineering, University of Tokyo), Akiko Kumada (Electrical and Electronic Engineering, University of Tokyo), Hisatoshi Ikeda (Electrical and Electronic Engineering, University of Tokyo), Kunihiko Hidaka (Electrical and Electronic Engineering, University of Tokyo), Steven A. Boggs (Institute of Materials Science, University of Connecticut), Yuichi Tsuboi (Toshiba Mitsubishi-Electric Industrial Systems Corporation), Tomohito Kisakibaru (Toshiba Mitsubishi-Electric Industrial Systems Corporation), Takayuki Sakurai (Toshiba Mitsubishi-Electric Industrial Systems Corporation), Tetsuo Yoshimitsu (Toshiba Mitsubishi-Electric Industrial Systems Corporation)

キーワード: インバータ，電界緩和層，型巻コイル，繰り返しインパルス，電位分布，部分放電　　inverter，stress grading system，form-wound coil，repetitive impulses，potential distribution，partial discharge

要約(英語): Recently, it has been pointed out that the erosion of stress grading systems of converter-fed rotating machines may occur by partial discharges and heat generation. It is necessary to measure not only temperature distributions but also potential distributions to grasp the erosion process and to design reliable insulation systems even under inverter surges. Therefore, in this study, the potential distributions under repetitive pulses were measured by a Pockels sensor which covers wide frequency up to GHz. Consequently, it was observed that the field concentrates on the Corona Armor Tape (CAT) closer to the stator core under shorter rising impulse voltage. In addition to this, it has been confirmed that the field concentrates on the CAT during the wave-front of impulses and on Stress Grading Tape (SGT) in the wave-tail of impulses.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.135 No.2 （2015） 特集：電気電子絶縁材料システムシンポジウム

本誌掲載ページ: 100-106 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/ieejfms/135/2/135_100/_article/-char/ja/