Developing Radio Sensing Techniques for Insulation Degradation Diagnosis of Ground Coils of Superconducting Maglev Systems

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560335
• 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: The University of Tokushima
• Principal Investigator: KAWADA MASATAKE 徳島大学, ソシオテクノサイエンス研究部, 准教授 (00303686)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 超電導磁気浮上式鉄道 / 地上コイル / 絶縁診断 / 部分放電 / 放射電磁波 / 電磁波センシング技術

Outline of Final Research Achievements

In superconducting magnetic levitation (Maglev) systems, superconducting magnets are located on both sides of the vehicles and ground coils are attached to sidewalls of the guideway; the vehicles are levitated, guided, and propelled over the guideway by the electromagnetic force between them. Because a partial discharge (PD), which is a degradation symptom of insulating resin of the ground coils, emits wideband electromagnetic (EM) waves, a radio sensing system for locating the PD by receiving the EM waves was developed in this study. The experimental results showed that the PD occurring in a ground coil with defects could be located by using the radio sensing system.

Free Research Field

電気・電磁環境