成果報告書詳細
管理番号20090000000777
タイトル*平成20年度中間年報 次世代自動車用高性能蓄電システム技術開発/要素技術開発/等価狭ギャップ構造による脱レアアース高性能リラクタンストルク応用モータの研究開発
公開日2010/3/24
報告書年度2008 - 2008
委託先名ダイキン工業株式会社
プロジェクト番号P07001
部署名燃料電池・水素技術開発部 蓄電技術開発室
和文要約以下本編抜粋:1.研究開発の内容及び成果等 1.1 研究開発の目的 本研究開発の目的は、フェライト磁石を補助的に用いる同期リラクタンスモータ(フェライト磁石補助型同期リラクタンスモータ)の高トルク化および実ギャップ長を短縮することなく狭ギャップモータと同等の性能となる等価狭ギャップ構造を組み合わせることにより、レアアース永久磁石の使用量がゼロで従来技術と同等の総合効率および出力密度となる、脱レアアース高性能リラクタンストルク応用モータを開発するとともにその実用化のための設計技術と生産技術を開発することである。
英文要約Title: Development of High-performance Battery System for Next-generation Vehicles/Elemental Technology Development/ Research and Development of Rare-earth-less High-performance Reluctance Motor with Equivalent Narrow Gap Structure (FY2008-FY2009) FY2008 Annual Report
The objective of this project is the development of a rare-earth-less high-performance reluctance motor which has the same performance as IPMSM that uses rare-earth
permanent magnets. A motor test bench system was developed to measure and evaluate accurately characteristics of the motor. The system was designed to measure the magnetic flux distributions in the air gap and the temperature of some points on the motor, as a result, the evaluation of losses and the characteristics of heat radiation became possible. For the torque measurement up to 20Nm at a standstill, the accuracy rate within ±0.19% has achieved. The technologies of stator-core structures, stacking and winding were studied to develop the production method for motors with an equivalent narrow gap structure. Prototype motors were built to evaluate the torque performance and the accuracy of the dimensions. The narrowest air gap length of the prototype motor with an equivalent narrow air gap is 0.3mm and the accuracy to be assembled correctly was ensured. Furthermore, stator cores divided into two were welded together to evaluate the influence of dividing the core on the radial dimension. By comparing the radial dimensions of the divided and non-divided cores, it was confirmed that the ratio of the difference of radial dimension to the air gap length was ±7%. It showed that the accuracy of the divided core dimension was enough to be used as a stator core with an equivalent narrow gap.
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