Development of a generator system for renewable energy using soft magnetic composite core and less permanent magnet

2016 Fiscal Year Final Research Report

• Project/Area Number: 25420241
• 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: Gunma University
• Principal Investigator: Ishikawa Takeo 群馬大学, 大学院理工学府, 教授 (40159695)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 再生可能エネルギー / 発電機 / トポロジー最適化

Outline of Final Research Achievements

The development of a power generation system using renewable energy is necessary for global warming countermeasure. The purpose of this research is to develop a power generating system with high power, high efficiency and high reliability, which is used in micro hydro power and/or wind power system. Moreover, it is to save the amount of permanent magnet, because it is expensive and has bias in the producing country. In order to develop a novel power generation system, we have developed a method for designing the rotor structure from the empty space, and have manufactured the designed one. The developed generator has 46 % higher output power and 2% higher efficiency than those of a commercialized one. Moreover, this research has clarified the method for the diagnosis of magnet decrease due to high temperature, and has developed the system with high reliability.

Free Research Field

電気工学，電気機器