New proposal of development method of innovative power apparatus with a super high reliability by supercomputing with super high frequency wide band discharge currents

2017 Fiscal Year Final Research Report

• Project/Area Number: 26630115
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Kyushu Institute of Technology
• Principal Investigator: OHTSUKA Shinya 九州工業大学, 大学院工学研究院, 准教授 (60315158)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 電力機器 / 部分放電 / 診断 / 電磁波 / 大規模解析

Outline of Final Research Achievements

The purpose of this study is to propose the innovative development method for power apparatus that brings the best diagnostics method and consequently contributes to construct the smart power system with highly reliability without faults and accidents in the system. We investigated the discharge current waveforms for the typical insulation media, especially for the power cable solid insulator, with the super high frequency wideband measurement system we have developed and extracted the feature values in view of the diagnostics. According to the FDTD analysis for propagation properties of discharge-emitted electromagnetic waves based on the measured current waveforms, it was achieved that optimal sensor specification and sensor arrangement in the apparatus were shown by the calculation. This result suggests that we can propose the new methodology to develop the innovative diagnostic system for the power apparatus and exhibit it.

Free Research Field

電力、高電圧・電気絶縁、診断、超高周波計測、電磁界解析、センシング