Creation of advanced nano-composite materials by studying interation between discharges and materials

2014 Fiscal Year Final Research Report

• Project/Area Number: 24656193
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: University of Hyogo
• Principal Investigator: NAGATA Masayoshi 兵庫県立大学, 工学(系)研究科(研究院), 教授 (00192237)
• Co-Investigator(Kenkyū-buntansha): FUKUMOTO Naoyuki 兵庫県立大学, 大学院工学研究科, 准教授 (90275305) ; KIKUCHI Yusuke 兵庫県立大学, 大学院工学研究科, 准教授 (00433326)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ナノコンポジット材料 / 部分放電 / インバータ駆動モータ / 耐サージ線 / 大型放射光分析

Outline of Final Research Achievements

The main purpose of this reserach is that by studying interaction between discharge and materials, we will create the nanocomposite enameled wires with superior partial discharge resistance that come into practical use as next-generation magnet wires. In the experiments, we have investigated partial discharge phenomenon that occurs across the gap by measuring the electric field strength and also the partial discharge inception voltage (PDIV) determined by surrounding environment factors such as humidity and air pressure when an impulse voltage is applied to a twisted-pair sample imitating coil windings. The life of a nanocomposite enameled wire depends on a good dispersion state of nano-filler that provides effective surge resistance. We have investigated the dispersion state as a fuction of the filling rate by using the world's largest synchrotron radiation facility (Spring-8) and found the optimum filling rate.

Free Research Field

プラズマ放電