Development of Direct Current Circuit Breaker using current commutaion for DC power feeding system

Research Project

Project/Area Number	26420260
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Power engineering/Power conversion/Electric machinery
Research Institution	Osaka Institute of Technology
Principal Investigator	Kimura Noriyuki 大阪工業大学, 工学部, 教授 (00144428)
Project Period (FY)	2014-04-01 – 2017-03-31
Project Status	Completed (Fiscal Year 2016)
Budget Amount *help	¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000) Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000) Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000) Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords	直流遮断器 / 直流事故発生装置 / 電気二重層キャパシタ / 直流アーク / 直流電流遮断現象 / 電気二重層キャパシタの特性 / 直流アーク特性の把握 / 直流電流遮断現象の把握 / 直流遮断装置 / 電極間距離測定手法 / アーク発生観測装置
Outline of Final Research Achievements	Direct Current Circuit Breaker (DCCB) is considered to be indispensable to develop the DC power feeding system. For this purpose, current commutation method using outer capacitor charge is proposed. By using EDLC dc power supply developed for high voltage and high current experiments, DCCB using proposed method has good ability at 180V, 22A experiments within the suppressed capacitor voltage.