磁性材料II磁性材料活用技術の最近動向

摘要

To achieve energy saving and higher performance,the application of core materials and permanent magnets is important in power electronics, where motors are driven by inverters, and choppers and converters are used to control voltages. High-performance permanent magnets increase motor powers and improve efficiency. The most suitable materials varyaccording to the core designs and exciting conditions,and consequently estimation of the performance in application conditions is important in order to achieve the higher performance. The performance of actual machines and devices is adversely affected by material punching, steel lamination, and core fixing, and it is therefore important to take account of these manufacturing processes during fabrication.