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Analysis and Reduction of Surface Losses in Solid Pole Synchronous Machines

Research Project

Project/Area Number 26420254
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Power engineering/Power conversion/Electric machinery
Research InstitutionKanazawa Institute of Technology

Principal Investigator

Shima Kazuo  金沢工業大学, 工学部, 教授 (20410285)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords電気機器 / 回転機 / 同期機 / 損失 / 塊状鉄心 / 電気機器工学 / 磁性 / 渦電流
Outline of Final Research Achievements

In this study, to clarify the principle of reducing the surface losses by grooves in solid-pole synchronous machines, a 1.5-kVA prototype machine was built, and its characteristics in a generator mode were investigated through experiments and finite element analysis (FEA). In addition, to more clearly grasp the effect of the grooves, its characteristics were compared under the same output power with those of two synchronous machines (ungrooved solid-pole synchronous machine and ungrooved laminated-pole synchronous machine) of the same size. The experimental and FEA results showed the following. By adding the grooves in the solid poles, 1) the surface losses can be reduced, 2) the field current is increased and the load angle is decreased, and 3) the magnetic saturation tends to occur in the field poles.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report

Research Products

(3 results)

All 2017 2015 2014

All Presentation (3 results)

  • [Presentation] 表面損失現象解明のためのグルーブ付き塊状磁極同期機の試作2017

    • Author(s)
      森岡俊弥・島 和男・深見 正
    • Organizer
      電気学会全国大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Measurement of Surface Losses in Solid Poles of Synchronous Machines Under Load Conditions2015

    • Author(s)
      Kazuo Shima, Kakeru Fujinuki, Takuya Matsumoto, and Tadashi Fukami
    • Organizer
      IEEE International Magnetics Conference
    • Place of Presentation
      Beijing (China)
    • Year and Date
      2015-05-11 – 2015-05-15
    • Related Report
      2014 Research-status Report
  • [Presentation] 突極形塊状磁極同期機の負荷時表面損失の測定および現象分析2014

    • Author(s)
      藤抜 翔・松本拓也・島 和男・深見 正
    • Organizer
      電気学会回転機研究会
    • Place of Presentation
      大阪府立大学I-siteなんば(大阪府大阪市)
    • Year and Date
      2014-10-29
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2019-03-29  

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