Innovative Design of Soft Magnetic Composite Brushless Permanent Magnet Motors with Enhanced Characteristics and Manufacturing Advantages for Commercial Applications

使用变速驱动器可以节省大量的能源。这些驱动器利用电机和电力电子设备以最高效率运行系统。然而，这种驱动器的高成本是限制其更广泛应用的最重要问题。虽然近年来电力电子的成本大幅下降，但电机成本相对不变。为了解决这个问题，我们提出了一种创新的电机结构方法，使用软磁复合材料，这是更简单，并提供更高的装配公差。该方法将降低电机制造成本并提高其效率，从而使变速驱动器在许多其他驱动应用中更具吸引力。

Using variable-speed drives can save significant amounts of energy. These drives utilise motors and power electronics to operate the system at the highest efficiency. However, the high cost of such drives is the most important issue restricting their wider application. Although the cost of power electronics has dropped substantially in recent years, the motor cost has been relatively unchanged. To address this issue, we propose an innovative motor construction method using soft magnetic composites materials, which is simpler and provides higher assembly tolerances. The method will reduce the motor manufacturing cost and improve its efficiency and so make the use of variable speed drives more attractive in many other drive applications.