CVClient

上野 秀樹

ウエノ ヒデキ  (Hideki Ueno)

基本情報

所属
兵庫県立大学 大学院 工学研究科 電気物性工学専攻 教授
学位
工学博士(大阪大学)
工学修士(信州大学)

J-GLOBAL ID
200901031869315630
researchmap会員ID
1000254209

外部リンク

論文

 111
  • 中山めぐみ, 岡田翔, 上野秀樹, 牟田神東達也
    電気学会論文誌A 144(9) 385-391 2024年9月1日  査読有り責任著者
  • 上野秀樹, 岡田翔, 比田悠斗, 三ツ橋昂起, 谷直樹
    電気材料技術雑誌 31(1) 26-34 2022年12月  査読有り筆頭著者
  • Tatsuya Mutakamihigashi, Shunya Tajiri, Sho Okada, Hideki Ueno
    IEEE Transactions on Dielectrics and Electrical Insulation 28(5) 1844-1847 2021年10月1日  査読有り
    It is well-known that acoustic waves are generated by partial discharge (PD), however, the wave generation mechanism remains unclear. To this end, in this study, a PD test is performed to measure the acoustic waves caused by PD in insulating oil. A needle-plate electrode is applied to generate PD, and the acoustic waves are detected by an acoustic emission (AE) sensor. The PD current and AE signal associated with PD are simultaneously measured, and their relationship is analyzed. The results indicate that the frequency components of an AE signal vary with the PD current duration time. Therefore, the amount of PD charge used as a parameter in dielectric degradation can be derived from the time integral of the PD current. Thus, the acoustic frequency can help estimate the amount of PD charge and the degradation of oil-immersed electric equipment. Furthermore, a possibility of increasing the accuracy of the PD diagnosis method by focusing on AE signal frequency is established.
  • 岡田 翔, 上田唯人, 森岡 慧, 岡 好浩, 上野秀樹
    プラズマ応用科学 29(1) 23-28 2021年7月  査読有り
  • Sho Okada, Kensuke Nakamura, Kanae Sakamoto, Hideki Ueno
    IEEJ Transactions on Electrical and Electronic Engineering 15(5) 646-651 2020年5月1日  査読有り
    © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc. Ozone has much attention in many industrial fields. To materialize higher ozone generation efficiency, it is necessary to elucidate the relationship between discharge characteristics for discharge electrode system and ozone generation concentration. To clarify the improvement of mechanism on the multiple needle-to-plane configurations, the discharge characteristics and ozone generation characteristics for a multiple needle electrode system with various needle tip distances have been investigated. In this experiment, the maximum ozone yield at needle tip interval of d = 0.5 mm was improved by the minimum discharge power, the local maximal at d = 0.5 mm of discharge volume and the same ozone generation compared with those for d = 0 mm and d = 1 mm. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

MISC

 118

書籍等出版物

 5

講演・口頭発表等

 319

担当経験のある科目(授業)

 17

共同研究・競争的資金等の研究課題

 9

産業財産権

 46