無方向性電磁鋼板の最近の進歩と応用特性

概要

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Recent progress in research on and development of new high-performance non-oriented electrical steels is described. This progress has been greatly promoted by a strong demand for high-efficiency motors to meet the current trends of energy conservation, environmental preservation, and higher performance in motors for applications in various fields. Material properties such as low iron loss, high flux density, and good workability are preferred in recent core applications such as brushless dc motors. In a series of studies on the application of core materials to motor core lamination, a brushless dc motor and an inverter-drive induction motor have been compared with respect to the direct dependence of the motor efficiency and partial losses on material magnetic properties such as iron loss and flux density, and a clear-cut difference has been found. Direct observation of local magnetic properties on the surface of an operating induction motor has also been attempted.
社団法人日本磁気学会の論文
2001-01-01